From: Kevin Day <Kevin@kevux.org>
Date: Wed, 4 Sep 2024 23:29:17 +0000 (-0500)
Subject: Feature: Add support for building under Android.
X-Git-Tag: 0.7.0~75
X-Git-Url: https://git.kevux.org/?a=commitdiff_plain;h=bb42ccf5677e2ae32f04af5c67bc23a5b9ff136c;p=fll

Feature: Add support for building under Android.

This is a forward port of the changes from the 0.6 branch without any testing.

This is not well tested or well supported.
This does have limited testing under the Termux project environment using CLang.

Add a new configuration option to build and run the project in an Android environment.

The test system had problems with text relocations but then required PIE.
This disables the relro in some spots (libraries) while enabling it in others (programs/executables).

Disable a lot of the functions that are not available or supported.

I have observed several warnings about `DT_FLAGS_1=0x41` being unsupported flag.
That is not a very helpful warning.
I have no idea what `0x41` is.
This causes a problem where the output of programs displays these warnings.
This can break programs that require I/O formatting and processing.

This has been tested to build using `bootstrap.sh` and then using `fake`.
Example build and install process:
# mkdir ~/software
# cd fll-0.6.X/
# ./bootstrap.sh build -m monolithic -m thread -m clang -m android && ./install.sh ~/software
# cd ../fake-0.6.X/
# ./bootstrap.sh build -m monolithic -m thread -m clang -m android -w ~/software && ./install.sh ~/software
# export LD_LIBRARY_PATH=~/software/libraries/shared
# export PATH=~/software/programs/shared
# cd ../byte_dump-0.6.X/
# fake -m monolithic -m thread -m clang -m android -w ~/software && ./install.sh ~/software

Example execution of `byte_dump` of `bash` program (this is a large dump).
# byte_dump -wt 7 $(type -p bash)
---

diff --git a/build/level_0/settings b/build/level_0/settings
index cff2d25..5dc2c86 100644
--- a/build/level_0/settings
+++ b/build/level_0/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -25,7 +26,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default level thread gcc
 
 build_compiler gcc
@@ -156,12 +157,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 #defines -D_f_file_rename_use_renameat2_
 defines -D_libcap_legacy_only_
 defines-clang -D_clang_not_a_compile_time_constant_workaround_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-fanalyzer -fanalyzer
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -171,3 +174,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/build/level_1/settings b/build/level_1/settings
index 307b399..63b5f7d 100644
--- a/build/level_1/settings
+++ b/build/level_1/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -25,7 +26,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default level thread gcc
 
 build_compiler gcc
@@ -87,12 +88,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-fanalyzer -fanalyzer
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -102,3 +105,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/build/level_2/settings b/build/level_2/settings
index c45bd1f..eefb9a0 100644
--- a/build/level_2/settings
+++ b/build/level_2/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -25,7 +26,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default level thread gcc
 
 build_compiler gcc
@@ -84,12 +85,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-fanalyzer -fanalyzer
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -99,3 +102,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/build/monolithic/settings b/build/monolithic/settings
index 69f8122..396ea17 100644
--- a/build/monolithic/settings
+++ b/build/monolithic/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -25,7 +26,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default monolithic thread gcc
 
 build_compiler gcc
@@ -199,12 +200,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 #defines -D_f_file_rename_use_renameat2_
 defines -D_libcap_legacy_only_
 defines-clang -D_clang_not_a_compile_time_constant_workaround_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces -Wall
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-fanalyzer -fanalyzer
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -214,3 +217,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/build/stand_alone/byte_dump.settings b/build/stand_alone/byte_dump.settings
index 46b77f5..ca5362a 100644
--- a/build/stand_alone/byte_dump.settings
+++ b/build/stand_alone/byte_dump.settings
@@ -4,6 +4,7 @@
 # This will compile a program that does not have a libbyte_dump.so library and builds all of the FLL dependencies into the resulting program.
 #
 # Modes:
+#   - android:    Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:      Use CLang rather than the default, which is generally GCC.
 #   - coverage:   Compile for building coverage.
 #   - fanalyzer:  Compile using GCC's -fanalyzer compile time option.
@@ -23,7 +24,7 @@ version_micro 2
 version_file micro
 version_target minor
 
-modes clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 test thread threadless
 modes_default thread gcc
 
 build_compiler gcc
@@ -96,12 +97,14 @@ defines -include sources/c/config.h -I sources/c/
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
 defines-clang -D_clang_not_a_compile_time_constant_workaround_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-fanalyzer -fanalyzer
@@ -112,3 +115,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/build/stand_alone/example.settings b/build/stand_alone/example.settings
index 215047f..76b782e 100644
--- a/build/stand_alone/example.settings
+++ b/build/stand_alone/example.settings
@@ -4,6 +4,7 @@
 # This will compile a program that does not have a libexample.so library and builds all of the FLL dependencies into the resulting program.
 #
 # Modes:
+#   - android:    Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:      Use CLang rather than the default, which is generally GCC.
 #   - coverage:   Compile for building coverage.
 #   - fanalyzer:  Compile using GCC's -fanalyzer compile time option.
@@ -23,7 +24,7 @@ version_micro 2
 version_file micro
 version_target minor
 
-modes clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 test thread threadless
 modes_default thread gcc
 
 build_compiler gcc
@@ -99,12 +100,14 @@ defines -include sources/c/config.h -I sources/c/
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
 defines-clang -D_clang_not_a_compile_time_constant_workaround_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces -Wno-main
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-fanalyzer -fanalyzer
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -114,3 +117,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/build/stand_alone/fake.settings b/build/stand_alone/fake.settings
index 6632311..e972469 100644
--- a/build/stand_alone/fake.settings
+++ b/build/stand_alone/fake.settings
@@ -4,6 +4,7 @@
 # This will compile a program that does not have a libfake.so library and builds all of the FLL dependencies into the resulting program.
 #
 # Modes:
+#   - android:    Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:      Use CLang rather than the default, which is generally GCC.
 #   - coverage:   Compile for building coverage.
 #   - fanalyzer:  Compile using GCC's -fanalyzer compile time option.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 test thread threadless
 modes_default thread gcc
 
 build_compiler gcc
@@ -123,12 +124,14 @@ defines -include sources/c/config.h -I sources/c/
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
 defines-clang -D_clang_not_a_compile_time_constant_workaround_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces -Wno-main
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-fanalyzer -fanalyzer
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -138,3 +141,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/build/stand_alone/firewall.settings b/build/stand_alone/firewall.settings
index 8e93b44..281772f 100644
--- a/build/stand_alone/firewall.settings
+++ b/build/stand_alone/firewall.settings
@@ -4,6 +4,7 @@
 # This will compile a program that does not have a libfirewall.so library and builds all of the FLL dependencies into the resulting program.
 #
 # Modes:
+#   - android:    Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:      Use CLang rather than the default, which is generally GCC.
 #   - coverage:   Compile for building coverage.
 #   - fanalyzer:  Compile using GCC's -fanalyzer compile time option.
@@ -23,7 +24,7 @@ version_micro 2
 version_file micro
 version_target minor
 
-modes clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 test thread threadless
 modes_default thread gcc
 
 build_compiler gcc
@@ -117,12 +118,14 @@ defines -include sources/c/config.h -I sources/c/
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
 defines-clang -D_clang_not_a_compile_time_constant_workaround_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces -Wno-main
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-fanalyzer -fanalyzer
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -132,3 +135,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/build/stand_alone/utf8.settings b/build/stand_alone/utf8.settings
index 91f0c1a..370c4a7 100644
--- a/build/stand_alone/utf8.settings
+++ b/build/stand_alone/utf8.settings
@@ -4,6 +4,7 @@
 # This will compile a program that does not have a libutf8.so library and builds all of the FLL dependencies into the resulting program.
 #
 # Modes:
+#   - android:    Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:      Use CLang rather than the default, which is generally GCC.
 #   - coverage:   Compile for building coverage.
 #   - fanalyzer:  Compile using GCC's -fanalyzer compile time option.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 test thread threadless
 modes_default thread gcc
 
 build_compiler gcc
@@ -97,12 +98,14 @@ defines -include sources/c/config.h -I sources/c/
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
 defines-clang -D_clang_not_a_compile_time_constant_workaround_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-fanalyzer -fanalyzer
@@ -113,3 +116,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_abstruse/data/build/settings b/level_0/f_abstruse/data/build/settings
index b16ad01..3d09c92 100644
--- a/level_0/f_abstruse/data/build/settings
+++ b/level_0/f_abstruse/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -63,12 +64,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -78,3 +81,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_account/data/build/settings b/level_0/f_account/data/build/settings
index 58952ad..d36e20f 100644
--- a/level_0/f_account/data/build/settings
+++ b/level_0/f_account/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_capability/data/build/settings b/level_0/f_capability/data/build/settings
index 5d1c7d9..4b5aa75 100644
--- a/level_0/f_capability/data/build/settings
+++ b/level_0/f_capability/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -66,12 +67,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -81,3 +84,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_color/data/build/settings b/level_0/f_color/data/build/settings
index 334f396..4f26a7b 100644
--- a/level_0/f_color/data/build/settings
+++ b/level_0/f_color/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_compare/data/build/settings b/level_0/f_compare/data/build/settings
index c86b529..ea47676 100644
--- a/level_0/f_compare/data/build/settings
+++ b/level_0/f_compare/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_console/data/build/settings b/level_0/f_console/data/build/settings
index 565e970..be3f78b 100644
--- a/level_0/f_console/data/build/settings
+++ b/level_0/f_console/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_control_group/data/build/settings b/level_0/f_control_group/data/build/settings
index e0574bf..d925a59 100644
--- a/level_0/f_control_group/data/build/settings
+++ b/level_0/f_control_group/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_conversion/data/build/settings b/level_0/f_conversion/data/build/settings
index de0f369..33e2536 100644
--- a/level_0/f_conversion/data/build/settings
+++ b/level_0/f_conversion/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_directory/data/build/settings b/level_0/f_directory/data/build/settings
index e552fbb..f624b4a 100644
--- a/level_0/f_directory/data/build/settings
+++ b/level_0/f_directory/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -65,12 +66,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -80,3 +83,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_environment/data/build/settings b/level_0/f_environment/data/build/settings
index 23805a9..baddadc 100644
--- a/level_0/f_environment/data/build/settings
+++ b/level_0/f_environment/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -65,12 +66,14 @@ environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
 #defines -D_di_libcap_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -80,3 +83,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_execute/data/build/settings b/level_0/f_execute/data/build/settings
index 71d748e..2ad38a9 100644
--- a/level_0/f_execute/data/build/settings
+++ b/level_0/f_execute/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -81,3 +84,4 @@ flags_library -fPIC
 flags_object -fPIC
 
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_file/data/build/settings b/level_0/f_file/data/build/settings
index 047bcb5..659bb30 100644
--- a/level_0/f_file/data/build/settings
+++ b/level_0/f_file/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -81,3 +84,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_fss/data/build/settings b/level_0/f_fss/data/build/settings
index 845f93f..1fa972b 100644
--- a/level_0/f_fss/data/build/settings
+++ b/level_0/f_fss/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -63,12 +64,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -78,3 +81,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_iki/data/build/settings b/level_0/f_iki/data/build/settings
index 098a025..3ccad07 100644
--- a/level_0/f_iki/data/build/settings
+++ b/level_0/f_iki/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_limit/data/build/settings b/level_0/f_limit/data/build/settings
index d5bf783..1a0ad3b 100644
--- a/level_0/f_limit/data/build/settings
+++ b/level_0/f_limit/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_memory/data/build/settings b/level_0/f_memory/data/build/settings
index 2002f31..25bcd6d 100644
--- a/level_0/f_memory/data/build/settings
+++ b/level_0/f_memory/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_network/data/build/settings b/level_0/f_network/data/build/settings
index cb124f7..2d94801 100644
--- a/level_0/f_network/data/build/settings
+++ b/level_0/f_network/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_parse/data/build/settings b/level_0/f_parse/data/build/settings
index 1960185..4a2b0e7 100644
--- a/level_0/f_parse/data/build/settings
+++ b/level_0/f_parse/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_path/data/build/settings b/level_0/f_path/data/build/settings
index 245a389..962f6ce 100644
--- a/level_0/f_path/data/build/settings
+++ b/level_0/f_path/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_pipe/data/build/settings b/level_0/f_pipe/data/build/settings
index a300282..be08009 100644
--- a/level_0/f_pipe/data/build/settings
+++ b/level_0/f_pipe/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_print/data/build/settings b/level_0/f_print/data/build/settings
index 92bd48a..f0982d8 100644
--- a/level_0/f_print/data/build/settings
+++ b/level_0/f_print/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -65,12 +66,14 @@ environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
 defines-clang -D_clang_not_a_compile_time_constant_workaround_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -80,3 +83,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_random/data/build/settings b/level_0/f_random/data/build/settings
index c42c05e..4a4d3ad 100644
--- a/level_0/f_random/data/build/settings
+++ b/level_0/f_random/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_rip/data/build/settings b/level_0/f_rip/data/build/settings
index d4bf230..0078b2e 100644
--- a/level_0/f_rip/data/build/settings
+++ b/level_0/f_rip/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_serialize/data/build/settings b/level_0/f_serialize/data/build/settings
index 24f8788..7301fb3 100644
--- a/level_0/f_serialize/data/build/settings
+++ b/level_0/f_serialize/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -55,12 +56,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -70,3 +73,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_signal/data/build/settings b/level_0/f_signal/data/build/settings
index d41666f..a0cb040 100644
--- a/level_0/f_signal/data/build/settings
+++ b/level_0/f_signal/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -63,12 +64,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -78,3 +81,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_socket/data/build/settings b/level_0/f_socket/data/build/settings
index c67c314..9891a10 100644
--- a/level_0/f_socket/data/build/settings
+++ b/level_0/f_socket/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_status/data/build/settings b/level_0/f_status/data/build/settings
index 1250668..a4eaaaf 100644
--- a/level_0/f_status/data/build/settings
+++ b/level_0/f_status/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -61,12 +62,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -76,3 +79,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_status_string/data/build/settings b/level_0/f_status_string/data/build/settings
index 6738e09..fc30d59 100644
--- a/level_0/f_status_string/data/build/settings
+++ b/level_0/f_status_string/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_string/data/build/settings b/level_0/f_string/data/build/settings
index aaa5b55..487cfce 100644
--- a/level_0/f_string/data/build/settings
+++ b/level_0/f_string/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -75,12 +76,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -90,3 +93,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_thread/data/build/settings b/level_0/f_thread/data/build/settings
index a58c706..a6e5953 100644
--- a/level_0/f_thread/data/build/settings
+++ b/level_0/f_thread/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -25,7 +26,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -71,6 +72,7 @@ defines -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags -pthread
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
@@ -80,3 +82,4 @@ flags-test -O0 -fstack-protector-strong -Wall
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_time/data/build/settings b/level_0/f_time/data/build/settings
index 2793e56..7a04539 100644
--- a/level_0/f_time/data/build/settings
+++ b/level_0/f_time/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_type/data/build/settings b/level_0/f_type/data/build/settings
index 35917ab..1c91b02 100644
--- a/level_0/f_type/data/build/settings
+++ b/level_0/f_type/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -61,12 +62,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -76,3 +79,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_type_array/data/build/settings b/level_0/f_type_array/data/build/settings
index 18a1024..98e1182 100644
--- a/level_0/f_type_array/data/build/settings
+++ b/level_0/f_type_array/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_0/f_utf/data/build/settings b/level_0/f_utf/data/build/settings
index 4d4d18b..0fa000c 100644
--- a/level_0/f_utf/data/build/settings
+++ b/level_0/f_utf/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -66,12 +67,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -81,3 +84,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_1/fl_control_group/data/build/settings b/level_1/fl_control_group/data/build/settings
index c4d36fe..587a23c 100644
--- a/level_1/fl_control_group/data/build/settings
+++ b/level_1/fl_control_group/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_1/fl_conversion/data/build/settings b/level_1/fl_conversion/data/build/settings
index f21a8b4..7d7d286 100644
--- a/level_1/fl_conversion/data/build/settings
+++ b/level_1/fl_conversion/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_1/fl_directory/data/build/settings b/level_1/fl_directory/data/build/settings
index 932804d..9444425 100644
--- a/level_1/fl_directory/data/build/settings
+++ b/level_1/fl_directory/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_1/fl_environment/data/build/settings b/level_1/fl_environment/data/build/settings
index c1a2d24..f95e774 100644
--- a/level_1/fl_environment/data/build/settings
+++ b/level_1/fl_environment/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -63,12 +64,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -78,3 +81,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_1/fl_execute/data/build/settings b/level_1/fl_execute/data/build/settings
index 2ee7a24..d00a060 100644
--- a/level_1/fl_execute/data/build/settings
+++ b/level_1/fl_execute/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -65,12 +66,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -80,3 +83,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_1/fl_fss/data/build/settings b/level_1/fl_fss/data/build/settings
index d10a5e4..193903e 100644
--- a/level_1/fl_fss/data/build/settings
+++ b/level_1/fl_fss/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_1/fl_iki/data/build/settings b/level_1/fl_iki/data/build/settings
index a2b1684..271e33c 100644
--- a/level_1/fl_iki/data/build/settings
+++ b/level_1/fl_iki/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_1/fl_path/data/build/settings b/level_1/fl_path/data/build/settings
index 0502fd9..e65a021 100644
--- a/level_1/fl_path/data/build/settings
+++ b/level_1/fl_path/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_1/fl_print/data/build/settings b/level_1/fl_print/data/build/settings
index 5fb5625..3ae298e 100644
--- a/level_1/fl_print/data/build/settings
+++ b/level_1/fl_print/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_1/fl_status_string/data/build/settings b/level_1/fl_status_string/data/build/settings
index 07afe71..a887a61 100644
--- a/level_1/fl_status_string/data/build/settings
+++ b/level_1/fl_status_string/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-thread -pthread
@@ -79,3 +82,4 @@ flags-test -O0 -fstack-protector-strong -Wall
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_1/fl_utf_file/data/build/settings b/level_1/fl_utf_file/data/build/settings
index 74368f2..c3bb2cc 100644
--- a/level_1/fl_utf_file/data/build/settings
+++ b/level_1/fl_utf_file/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_2/fll_control_group/data/build/settings b/level_2/fll_control_group/data/build/settings
index f2ee3f3..493940a 100644
--- a/level_2/fll_control_group/data/build/settings
+++ b/level_2/fll_control_group/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -63,12 +64,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -78,3 +81,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_2/fll_error/data/build/settings b/level_2/fll_error/data/build/settings
index 56325da..9b83147 100644
--- a/level_2/fll_error/data/build/settings
+++ b/level_2/fll_error/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_2/fll_execute/data/build/settings b/level_2/fll_execute/data/build/settings
index abb087e..683ffc1 100644
--- a/level_2/fll_execute/data/build/settings
+++ b/level_2/fll_execute/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -67,12 +68,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -82,3 +85,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_2/fll_file/data/build/settings b/level_2/fll_file/data/build/settings
index 3ee5006..a729ce9 100644
--- a/level_2/fll_file/data/build/settings
+++ b/level_2/fll_file/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_2/fll_fss/data/build/settings b/level_2/fll_fss/data/build/settings
index af7ed11..9ce1071 100644
--- a/level_2/fll_fss/data/build/settings
+++ b/level_2/fll_fss/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_2/fll_fss_status_string/data/build/settings b/level_2/fll_fss_status_string/data/build/settings
index 4817d3e..e9a3033 100644
--- a/level_2/fll_fss_status_string/data/build/settings
+++ b/level_2/fll_fss_status_string/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_2/fll_iki/data/build/settings b/level_2/fll_iki/data/build/settings
index 325ec17..b29d8ac 100644
--- a/level_2/fll_iki/data/build/settings
+++ b/level_2/fll_iki/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_2/fll_print/data/build/settings b/level_2/fll_print/data/build/settings
index cb42f21..4e799da 100644
--- a/level_2/fll_print/data/build/settings
+++ b/level_2/fll_print/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_2/fll_program/data/build/settings b/level_2/fll_program/data/build/settings
index e984849..af885b0 100644
--- a/level_2/fll_program/data/build/settings
+++ b/level_2/fll_program/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default individual individual_thread thread
 
 build_compiler gcc
@@ -64,12 +65,14 @@ search_static yes
 environment PATH LD_LIBRARY_PATH
 environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME LOCPATH NLSPATH
 
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-gcc_13 -fstrict-flex-arrays=3
@@ -79,3 +82,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_3/byte_dump/data/build/settings b/level_3/byte_dump/data/build/settings
index 02004a0..4e84f34 100644
--- a/level_3/byte_dump/data/build/settings
+++ b/level_3/byte_dump/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default monolithic thread gcc
 
 build_compiler gcc
@@ -74,12 +75,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
 defines-clang -D_clang_not_a_compile_time_constant_workaround_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-fanalyzer -fanalyzer
@@ -90,3 +93,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_3/example/data/build/settings b/level_3/example/data/build/settings
index d04641a..4584d71 100644
--- a/level_3/example/data/build/settings
+++ b/level_3/example/data/build/settings
@@ -3,15 +3,16 @@
 # Builds the main library of the project with all parts except "main" program related.
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -25,7 +26,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default monolithic thread gcc
 
 build_compiler gcc
@@ -82,12 +83,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-fanalyzer -fanalyzer
@@ -98,3 +101,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_3/fake/data/build/settings b/level_3/fake/data/build/settings
index 545968e..8383a89 100644
--- a/level_3/fake/data/build/settings
+++ b/level_3/fake/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -26,7 +27,7 @@ version_target minor
 process_pre process_pre.sh
 process_post process_post.sh
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default monolithic thread gcc
 
 build_compiler gcc
@@ -86,12 +87,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces -Wno-main
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-fanalyzer -fanalyzer
@@ -102,3 +105,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_3/firewall/data/build/settings b/level_3/firewall/data/build/settings
index e823d5b..dc09204 100644
--- a/level_3/firewall/data/build/settings
+++ b/level_3/firewall/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default monolithic thread gcc
 
 build_compiler gcc
@@ -81,12 +82,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-fanalyzer -fanalyzer
@@ -97,3 +100,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_3/fss_identify/data/build/settings b/level_3/fss_identify/data/build/settings
index c39d901..5e204c8 100644
--- a/level_3/fss_identify/data/build/settings
+++ b/level_3/fss_identify/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default monolithic thread gcc
 
 build_compiler gcc
@@ -73,12 +74,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-fanalyzer -fanalyzer
@@ -89,3 +92,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_3/fss_read/data/build/settings b/level_3/fss_read/data/build/settings
index 24f122e..cf1c51a 100644
--- a/level_3/fss_read/data/build/settings
+++ b/level_3/fss_read/data/build/settings
@@ -3,15 +3,16 @@
 # Builds the main library of the project with all parts except "main" program related.
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -25,7 +26,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default monolithic thread gcc
 
 build_compiler gcc
@@ -74,12 +75,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces -Wno-main
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-fanalyzer -fanalyzer
@@ -90,3 +93,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_3/fss_write/data/build/settings b/level_3/fss_write/data/build/settings
index 6307ef0..6f3e937 100644
--- a/level_3/fss_write/data/build/settings
+++ b/level_3/fss_write/data/build/settings
@@ -3,15 +3,16 @@
 # Builds the main library of the project with all parts except "main" program related.
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -25,7 +26,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default monolithic thread gcc
 
 build_compiler gcc
@@ -74,12 +75,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-fanalyzer -fanalyzer
@@ -90,3 +93,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_3/iki_read/data/build/settings b/level_3/iki_read/data/build/settings
index ba0109b..579213e 100644
--- a/level_3/iki_read/data/build/settings
+++ b/level_3/iki_read/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default monolithic thread gcc
 
 build_compiler gcc
@@ -73,12 +74,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-fanalyzer -fanalyzer
@@ -89,3 +92,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_3/iki_write/data/build/settings b/level_3/iki_write/data/build/settings
index 7697437..5f3acd7 100644
--- a/level_3/iki_write/data/build/settings
+++ b/level_3/iki_write/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default monolithic thread gcc
 
 build_compiler gcc
@@ -72,12 +73,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-fanalyzer -fanalyzer
@@ -88,3 +91,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_3/status_code/data/build/settings b/level_3/status_code/data/build/settings
index 1c4620e..807eead 100644
--- a/level_3/status_code/data/build/settings
+++ b/level_3/status_code/data/build/settings
@@ -3,15 +3,16 @@
 # Builds the main library of the project with all parts except "main" program related.
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -25,7 +26,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default monolithic thread gcc
 
 build_compiler gcc
@@ -75,12 +76,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-fanalyzer -fanalyzer
@@ -91,3 +94,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro
diff --git a/level_3/utf8/data/build/settings b/level_3/utf8/data/build/settings
index 28da270..0f3de74 100644
--- a/level_3/utf8/data/build/settings
+++ b/level_3/utf8/data/build/settings
@@ -1,15 +1,16 @@
 # fss-0001
 #
 # Modes:
-#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
-#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
-#   - level:             Compile using per level libraries.
-#   - monolithic:        Compile using per monolithic libraries.
+#   - android:           Compile on an android system (using Termux; may need modification depending on the android system).
 #   - clang:             Use CLang rather than the default, which is generally GCC.
 #   - coverage:          Compile for building coverage.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - gcc:               Use GCC specific settings.
 #   - gcc_13:            Use GCC version 13 or greater specific settings.
+#   - individual:        Compile using per project (individual) libraries, does not handle thread or threadless cases.
+#   - individual_thread: This is required when compiling in individual mode with "thread" mode.
+#   - level:             Compile using per level libraries.
+#   - monolithic:        Compile using per monolithic libraries.
 #   - test:              Compile for a test, such as unit testing.
 #   - thread:            Compile with thread support.
 #   - threadless:        Compile without thread support.
@@ -23,7 +24,7 @@ version_micro 0
 version_file micro
 version_target minor
 
-modes individual individual_thread level monolithic clang coverage fanalyzer gcc gcc_13 test thread threadless
+modes android clang coverage fanalyzer gcc gcc_13 individual individual_thread level monolithic test thread threadless
 modes_default monolithic thread gcc
 
 build_compiler gcc
@@ -73,12 +74,14 @@ environment LANG LC_ALL LC_COLLATE LC_CTYPE LC_FASTMSG LC_MESSAGES LC_MONETARY L
 
 #defines -D_di_libcap_
 defines -D_libcap_legacy_only_
+defines-android -D_di_f_thread_attribute_affinity_get_ -D_di_f_thread_attribute_affinity_set_ -D_di_f_thread_attribute_concurrency_get_ -D_di_f_thread_attribute_concurrency_set_ -D_di_f_thread_attribute_default_get_ -D_di_f_thread_attribute_default_set_ -D_di_f_thread_cancel_ -D_di_f_thread_cancel_state_set_ -D_di_f_thread_cancel_test_ -D_di_f_thread_join_try_ -D_di_f_thread_join_timed_ -D_pthread_mutex_prioceiling_unsupported_ -D_di_f_thread_semaphore_file_close_ -D_di_f_thread_semaphore_file_open_ -D_di_f_thread_semaphore_file_delete_ -D_di_f_thread_cancel_type_set_
 defines-thread -D_pthread_attr_unsupported_ -D_pthread_sigqueue_unsupported_
 defines-threadless -D_di_thread_support_
 
 flags -O2 -g -fdiagnostics-color=always -Wno-logical-not-parentheses -Wno-parentheses -Wno-missing-braces
 flags -fstack-clash-protection -fno-delete-null-pointer-checks
 flags -Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now
+flags-android -Wno-implicit-function-declaration -Wl,-z,norelro
 flags-clang -Wno-logical-op-parentheses
 flags-coverage -O0 --coverage -fprofile-abs-path -fprofile-dir=build/coverage/
 flags-fanalyzer -fanalyzer
@@ -89,3 +92,4 @@ flags-thread -pthread
 flags_library -fPIC
 flags_object -fPIC
 flags_program -fPIE
+flags_program-android -fPIE -Wl,-z,relro