error: ‘unused_var_function’ defined but not used [-Werror=unused-function]

[jiapei100]

I met two new bugs:

[ 73%] Building C object samples/socketio_connect/CMakeFiles/socketio_connect.dir/main.c.o
cd ....../azure-c-shared-utility/build_24.04/samples/tlsio_connect && /usr/bin/c++ -DARCHITECTURE_x86_64=1 -DOPENSSL_API_COMPAT=0x10101000L -DUSE_HTTP -I....../azure-c-shared-utility/inc -I....../azure-c-shared-utility/pal/linux -I....../azure-c-shared-utility/deps/umock-c/inc -I....../azure-c-shared-utility/deps/azure-macro-utils-c/inc -Werror -Werror -Wall -Wextra -Wformat=2 -Wformat-security -DUSE_OPENSSL -Wno-unused-variable -Wno-missing-braces -Wno-missing-field-initializers -Wno-format-nonliteral -O3 -DNDEBUG -std=gnu++11 -fPIE -MD -MT samples/tlsio_connect/CMakeFiles/tlsio_connect.dir/main.cxx.o -MF CMakeFiles/tlsio_connect.dir/main.cxx.o.d -o CMakeFiles/tlsio_connect.dir/main.cxx.o -c ....../azure-c-shared-utility/build_24.04/samples/tlsio_connect/main.cxx
cd ....../azure-c-shared-utility/build_24.04/samples/socketio_connect && /usr/bin/cc -DARCHITECTURE_x86_64=1 -DOPENSSL_API_COMPAT=0x10101000L -DUSE_HTTP -I....../azure-c-shared-utility/inc -I....../azure-c-shared-utility/pal/linux -I....../azure-c-shared-utility/deps/umock-c/inc -I....../azure-c-shared-utility/deps/azure-macro-utils-c/inc -D_POSIX_C_SOURCE=200112L -D_XOPEN_SOURCE=500  -Werror -Werror -Wall -Wextra -Wformat=2 -Wformat-security -DUSE_OPENSSL -Wno-unused-variable -Wno-missing-braces -Wno-missing-field-initializers -Wno-format-nonliteral -O3 -DNDEBUG -std=gnu99 -fPIE -MD -MT samples/socketio_connect/CMakeFiles/socketio_connect.dir/main.c.o -MF CMakeFiles/socketio_connect.dir/main.c.o.d -o CMakeFiles/socketio_connect.dir/main.c.o -c ....../azure-c-shared-utility/samples/socketio_connect/main.c
....../azure-c-shared-utility/deps/umock-c/deps/c-logging/v2/src/log_errno_linux.c:17:13: error: ‘unused_var_function’ defined but not used [-Werror=unused-function]
   17 | static void unused_var_function(void)
      |             ^~~~~~~~~~~~~~~~~~~
In file included from ....../azure-c-shared-utility/deps/umock-c/src/umock_c.c:6:
....../azure-c-shared-utility/deps/umock-c/src/umock_c.c: In function ‘MU_UMOCK_C_STATE_ToString’:
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:230:28: error: comparison of integer expressions of different signedness: ‘int’ and ‘UMOCK_C_STATE’ {aka ‘enum UMOCK_C_STATE_TAG’} [-Werror=sign-compare]
  230 |     if (current_enum_value == value) \
      |                            ^~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils_generated.h:13578:1: note: in expansion of macro ‘MU_INTERNAL_ASSIGN_ENUM_VALUE’
13578 | X(3, P1) \
      | ^
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:107:21: note: in expansion of macro ‘MU_FOR_EACH_1_COUNTED_3’
  107 | #define MU_C2_(x,y) x##y
      |                     ^
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:275:9: note: in expansion of macro ‘MU_FOR_EACH_1_COUNTED’
  275 |         MU_FOR_EACH_1_COUNTED(MU_INTERNAL_ASSIGN_ENUM_VALUE, __VA_ARGS__) \
      |         ^~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:282:5: note: in expansion of macro ‘MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID_COMMON_CODE’
  282 |     MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID_COMMON_CODE(enumName, __VA_ARGS__)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:286:5: note: in expansion of macro ‘MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID’
  286 |     MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID(enumName, MU_C2(enumName, _INVALID), __VA_ARGS__)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/umock-c/src/umock_c.c:21:1: note: in expansion of macro ‘MU_DEFINE_ENUM_STRINGS’
   21 | MU_DEFINE_ENUM_STRINGS(UMOCK_C_STATE, UMOCK_C_STATE_VALUES);
      | ^~~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:230:28: error: comparison of integer expressions of different signedness: ‘int’ and ‘UMOCK_C_STATE’ {aka ‘enum UMOCK_C_STATE_TAG’} [-Werror=sign-compare]
  230 |     if (current_enum_value == value) \
      |                            ^~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils_generated.h:13574:1: note: in expansion of macro ‘MU_INTERNAL_ASSIGN_ENUM_VALUE’
13574 | X(2, P1) \
      | ^
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils_generated.h:13579:1: note: in expansion of macro ‘MU_FOR_EACH_1_COUNTED_2’
13579 | MU_FOR_EACH_1_COUNTED_2(X, P2, P3)
      | ^~~~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:107:21: note: in expansion of macro ‘MU_FOR_EACH_1_COUNTED_3’
  107 | #define MU_C2_(x,y) x##y
      |                     ^
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:275:9: note: in expansion of macro ‘MU_FOR_EACH_1_COUNTED’
  275 |         MU_FOR_EACH_1_COUNTED(MU_INTERNAL_ASSIGN_ENUM_VALUE, __VA_ARGS__) \
      |         ^~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:282:5: note: in expansion of macro ‘MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID_COMMON_CODE’
  282 |     MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID_COMMON_CODE(enumName, __VA_ARGS__)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:286:5: note: in expansion of macro ‘MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID’
  286 |     MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID(enumName, MU_C2(enumName, _INVALID), __VA_ARGS__)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/umock-c/src/umock_c.c:21:1: note: in expansion of macro ‘MU_DEFINE_ENUM_STRINGS’
   21 | MU_DEFINE_ENUM_STRINGS(UMOCK_C_STATE, UMOCK_C_STATE_VALUES);
      | ^~~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:230:28: error: comparison of integer expressions of different signedness: ‘int’ and ‘UMOCK_C_STATE’ {aka ‘enum UMOCK_C_STATE_TAG’} [-Werror=sign-compare]
  230 |     if (current_enum_value == value) \
      |                            ^~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils_generated.h:13571:5: note: in expansion of macro ‘MU_INTERNAL_ASSIGN_ENUM_VALUE’
13571 |     X(1, P1)
      |     ^
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils_generated.h:13575:1: note: in expansion of macro ‘MU_FOR_EACH_1_COUNTED_1’
13575 | MU_FOR_EACH_1_COUNTED_1(X, P2)
      | ^~~~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils_generated.h:13579:1: note: in expansion of macro ‘MU_FOR_EACH_1_COUNTED_2’
13579 | MU_FOR_EACH_1_COUNTED_2(X, P2, P3)
      | ^~~~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:107:21: note: in expansion of macro ‘MU_FOR_EACH_1_COUNTED_3’
  107 | #define MU_C2_(x,y) x##y
      |                     ^
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:275:9: note: in expansion of macro ‘MU_FOR_EACH_1_COUNTED’
  275 |         MU_FOR_EACH_1_COUNTED(MU_INTERNAL_ASSIGN_ENUM_VALUE, __VA_ARGS__) \
      |         ^~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:282:5: note: in expansion of macro ‘MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID_COMMON_CODE’
  282 |     MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID_COMMON_CODE(enumName, __VA_ARGS__)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/azure-macro-utils-c/inc/macro_utils/macro_utils.h:286:5: note: in expansion of macro ‘MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID’
  286 |     MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID(enumName, MU_C2(enumName, _INVALID), __VA_ARGS__)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
....../azure-c-shared-utility/deps/umock-c/src/umock_c.c:21:1: note: in expansion of macro ‘MU_DEFINE_ENUM_STRINGS’
   21 | MU_DEFINE_ENUM_STRINGS(UMOCK_C_STATE, UMOCK_C_STATE_VALUES);
      | ^~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[2]: *** [deps/umock-c/deps/c-logging/v2/CMakeFiles/c_logging_v2_core.dir/build.make:247: deps/umock-c/deps/c-logging/v2/CMakeFiles/c_logging_v2_core.dir/src/log_errno_linux.c.o] Error 1
make[2]: Leaving directory '....../azure-c-shared-utility/build_24.04'
make[1]: *** [CMakeFiles/Makefile2:1277: deps/umock-c/deps/c-logging/v2/CMakeFiles/c_logging_v2_core.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
cc1: all warnings being treated as errors
make[2]: *** [deps/umock-c/CMakeFiles/umock_c.dir/build.make:79: deps/umock-c/CMakeFiles/umock_c.dir/src/umock_c.c.o] Error 1
make[2]: Leaving directory '....../azure-c-shared-utility/build_24.04'
make[1]: *** [CMakeFiles/Makefile2:1225: deps/umock-c/CMakeFiles/umock_c.dir/all] Error 2
[ 73%] Linking C executable socketio_connect
cd ....../azure-c-shared-utility/build_24.04/samples/socketio_connect && /usr/bin/cmake -E cmake_link_script CMakeFiles/socketio_connect.dir/link.txt --verbose=1
[ 73%] Linking CXX executable tlsio_connect
cd ....../azure-c-shared-utility/build_24.04/samples/tlsio_connect && /usr/bin/cmake -E cmake_link_script CMakeFiles/tlsio_connect.dir/link.txt --verbose=1
/usr/bin/cc -D_POSIX_C_SOURCE=200112L -D_XOPEN_SOURCE=500  -Werror -Werror -Wall -Wextra -Wformat=2 -Wformat-security -DUSE_OPENSSL -Wno-unused-variable -Wno-missing-braces -Wno-missing-field-initializers -Wno-format-nonliteral -O3 -DNDEBUG CMakeFiles/socketio_connect.dir/main.c.o -o socketio_connect  -Wl,-rpath,....../azure-c-shared-utility/build_24.04 ../../libaziotsharedutil.so /usr/lib/x86_64-linux-gnu/libcurl.so /usr/lib/x86_64-linux-gnu/libssl.so /usr/lib/x86_64-linux-gnu/libcrypto.so -lpthread -lm -lrt -luuid 
[ 73%] Linking C executable iot_c_utility
/usr/bin/c++  -Werror -Werror -Wall -Wextra -Wformat=2 -Wformat-security -DUSE_OPENSSL -Wno-unused-variable -Wno-missing-braces -Wno-missing-field-initializers -Wno-format-nonliteral -O3 -DNDEBUG CMakeFiles/tlsio_connect.dir/main.cxx.o -o tlsio_connect  -Wl,-rpath,....../azure-c-shared-utility/build_24.04 ../../libaziotsharedutil.so /usr/lib/x86_64-linux-gnu/libcurl.so /usr/lib/x86_64-linux-gnu/libssl.so /usr/lib/x86_64-linux-gnu/libcrypto.so -lpthread -lm -lrt -luuid 
cd ....../azure-c-shared-utility/build_24.04/samples/iot_c_utility && /usr/bin/cmake -E cmake_link_script CMakeFiles/iot_c_utility.dir/link.txt --verbose=1
/usr/bin/cc -D_POSIX_C_SOURCE=200112L -D_XOPEN_SOURCE=500  -Werror -Werror -Wall -Wextra -Wformat=2 -Wformat-security -DUSE_OPENSSL -Wno-unused-variable -Wno-missing-braces -Wno-missing-field-initializers -Wno-format-nonliteral -O3 -DNDEBUG CMakeFiles/iot_c_utility.dir/iot_c_utility.c.o -o iot_c_utility  -Wl,-rpath,....../azure-c-shared-utility/build_24.04 ../../libaziotsharedutil.so /usr/lib/x86_64-linux-gnu/libcurl.so /usr/lib/x86_64-linux-gnu/libssl.so /usr/lib/x86_64-linux-gnu/libcrypto.so -lpthread -lm -lrt -luuid 
make[2]: Leaving directory '....../azure-c-shared-utility/build_24.04'
make[2]: Leaving directory '....../azure-c-shared-utility/build_24.04'
[ 73%] Built target socketio_connect
make[2]: Leaving directory '....../azure-c-shared-utility/build_24.04'
[ 73%] Built target tlsio_connect
[ 73%] Built target iot_c_utility
make[1]: Leaving directory '....../azure-c-shared-utility/build_24.04'
make: *** [Makefile:149: all] Error 2

Can be summarized as:

1. 17 | static void unused_var_function(void)```
   

230 | if (current_enum_value == value) \

Can anybody take a look?

Cheers