diff options
Diffstat (limited to 'Tests/RunCMake/CheckCompilerFlag/CheckCompilerFlagC.cmake')
| -rw-r--r-- | Tests/RunCMake/CheckCompilerFlag/CheckCompilerFlagC.cmake | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/Tests/RunCMake/CheckCompilerFlag/CheckCompilerFlagC.cmake b/Tests/RunCMake/CheckCompilerFlag/CheckCompilerFlagC.cmake new file mode 100644 index 0000000..276158c --- /dev/null +++ b/Tests/RunCMake/CheckCompilerFlag/CheckCompilerFlagC.cmake @@ -0,0 +1,33 @@ + +enable_language (C) +include(CheckCompilerFlag) + +set(C 1) # test that this is tolerated + +# test that the check uses an isolated locale +set(_env_LC_ALL "${LC_ALL}") +set(ENV{LC_ALL} "BAD") + +check_compiler_flag(C "-_this_is_not_a_flag_" SHOULD_FAIL) +if(SHOULD_FAIL) + message(SEND_ERROR "invalid C compile flag didn't fail.") +endif() + +if(CMAKE_C_COMPILER_ID MATCHES "GNU|LCC|Clang" AND NOT "x${CMAKE_C_SIMULATE_ID}" STREQUAL "xMSVC") + check_compiler_flag(C "-x c" SHOULD_WORK) + if(NOT SHOULD_WORK) + message(SEND_ERROR "${CMAKE_C_COMPILER_ID} compiler flag '-x c' check failed") + endif() +endif() + +if(CMAKE_C_COMPILER_ID STREQUAL "GNU") # LCC C compiler silently ignore -frtti instead of failing, so skip it here. + check_compiler_flag(C "-frtti" SHOULD_FAIL_RTTI) + if(SHOULD_FAIL_RTTI) + message(SEND_ERROR "${CMAKE_C_COMPILER_ID} compiler flag '-frtti' check passed but should have failed") + endif() +endif() + +if(NOT "$ENV{LC_ALL}" STREQUAL "BAD") + message(SEND_ERROR "ENV{LC_ALL} was not preserved by check_compiler_flag") +endif() +set(ENV{LC_ALL} ${_env_LC_ALL}) |