diff options
Diffstat (limited to 'volk/lib/CMakeLists.txt')
| -rw-r--r-- | volk/lib/CMakeLists.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/volk/lib/CMakeLists.txt b/volk/lib/CMakeLists.txt index 59d78b446..58bf026b4 100644 --- a/volk/lib/CMakeLists.txt +++ b/volk/lib/CMakeLists.txt @@ -55,6 +55,17 @@ if(NOT DEFINED COMPILER_NAME) endif() ######################################################################## +# Special clang flag so flag checks can fail +######################################################################## +if(COMPILER_NAME MATCHES "GNU") + include(CheckCXXCompilerFlag) + CHECK_CXX_COMPILER_FLAG("-Werror=unused-command-line-argument" HAVE_WERROR_UNUSED_CMD_LINE_ARG) + if(HAVE_WERROR_UNUSED_CMD_LINE_ARG) + set(VOLK_FLAG_CHECK_FLAGS "-Werror=unused-command-line-argument") + endif() +endif() + +######################################################################## # detect x86 flavor of CPU ######################################################################## if (${CMAKE_SYSTEM_PROCESSOR} MATCHES "^(i.86|x86|x86_64|amd64)$") @@ -82,7 +93,9 @@ macro(check_arch arch_name) COMMAND ${PYTHON_EXECUTABLE} -c "import re; print(re.sub('\\W', '_', '${have_flag}'))" OUTPUT_VARIABLE have_flag OUTPUT_STRIP_TRAILING_WHITESPACE ) + set(CMAKE_REQUIRED_FLAGS VOLK_FLAG_CHECK_FLAGS) CHECK_CXX_COMPILER_FLAG(${flag} ${have_flag}) + unset(CMAKE_REQUIRED_FLAGS) if (NOT ${have_flag}) set(have_${arch_name} FALSE) endif() |