diff options
Diffstat (limited to 'cmake/add_global_flag.cmake')
| -rw-r--r-- | cmake/add_global_flag.cmake | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/cmake/add_global_flag.cmake b/cmake/add_global_flag.cmake new file mode 100644 index 00000000..893e1200 --- /dev/null +++ b/cmake/add_global_flag.cmake @@ -0,0 +1,55 @@ +#===------------------------------------------------------------------------===# +# +# The KLEE Symbolic Virtual Machine +# +# This file is distributed under the University of Illinois Open Source +# License. See LICENSE.TXT for details. +# +#===------------------------------------------------------------------------===# +include(CheckCXXCompilerFlag) +include(CheckCCompilerFlag) +include(CMakeParseArguments) + +function(add_global_cxx_flag flag) + CMAKE_PARSE_ARGUMENTS(add_global_cxx_flag "REQUIRED" "" "" ${ARGN}) + string(REPLACE "-" "_" SANITIZED_FLAG_NAME "${flag}") + string(REPLACE "/" "_" SANITIZED_FLAG_NAME "${SANITIZED_FLAG_NAME}") + string(REPLACE "=" "_" SANITIZED_FLAG_NAME "${SANITIZED_FLAG_NAME}") + string(REPLACE " " "_" SANITIZED_FLAG_NAME "${SANITIZED_FLAG_NAME}") + string(REPLACE "+" "_" SANITIZED_FLAG_NAME "${SANITIZED_FLAG_NAME}") + unset(HAS_${SANITIZED_FLAG_NAME}) + CHECK_CXX_COMPILER_FLAG("${flag}" HAS_${SANITIZED_FLAG_NAME}_CXX) + if (add_global_cxx_flag_REQUIRED AND NOT HAS_${SANITIZED_FLAG_NAME}_CXX) + message(FATAL_ERROR "The flag \"${flag}\" is required but your C++ compiler doesn't support it") + endif() + if (HAS_${SANITIZED_FLAG_NAME}_CXX) + message(STATUS "C++ compiler supports ${flag}") + # NOTE: Have to be careful here as CMAKE_CXX_FLAGS is a string + # and not a list. + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${flag}" PARENT_SCOPE) + else() + message(STATUS "C++ compiler does not support ${flag}") + endif() +endfunction() + +function(add_global_c_flag flag) + CMAKE_PARSE_ARGUMENTS(add_global_c_flag "REQUIRED" "" "" ${ARGN}) + string(REPLACE "-" "_" SANITIZED_FLAG_NAME "${flag}") + string(REPLACE "/" "_" SANITIZED_FLAG_NAME "${SANITIZED_FLAG_NAME}") + string(REPLACE "=" "_" SANITIZED_FLAG_NAME "${SANITIZED_FLAG_NAME}") + string(REPLACE " " "_" SANITIZED_FLAG_NAME "${SANITIZED_FLAG_NAME}") + string(REPLACE "+" "_" SANITIZED_FLAG_NAME "${SANITIZED_FLAG_NAME}") + unset(HAS_${SANITIZED_FLAG_NAME}) + CHECK_C_COMPILER_FLAG("${flag}" HAS_${SANITIZED_FLAG_NAME}_C) + if (add_global_c_flag_REQUIRED AND NOT HAS_${SANITIZED_FLAG_NAME}_C) + message(FATAL_ERROR "The flag \"${flag}\" is required but your C compiler doesn't support it") + endif() + if (HAS_${SANITIZED_FLAG_NAME}_C) + message(STATUS "C compiler supports ${flag}") + # NOTE: Have to be careful here as CMAKE_C_FLAGS is a string + # and not a list. + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flag}" PARENT_SCOPE) + else() + message(STATUS "C compiler does not support ${flag}") + endif() +endfunction() |