diff options
Diffstat (limited to 'EASTL/scripts/CMake/CommonCppFlags.cmake')
| -rw-r--r-- | EASTL/scripts/CMake/CommonCppFlags.cmake | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/EASTL/scripts/CMake/CommonCppFlags.cmake b/EASTL/scripts/CMake/CommonCppFlags.cmake new file mode 100644 index 0000000..08b6af5 --- /dev/null +++ b/EASTL/scripts/CMake/CommonCppFlags.cmake @@ -0,0 +1,83 @@ +#------------------------------------------------------------------------------------------- +# Compiler Flag Detection +#------------------------------------------------------------------------------------------- +include(CheckCXXCompilerFlag) + +check_cxx_compiler_flag("-fchar8_t" EASTL_HAS_FCHAR8T_FLAG) +check_cxx_compiler_flag("/Zc:char8_t" EASTL_HAS_ZCCHAR8T_FLAG) + +if(EASTL_HAS_FCHAR8T_FLAG) + set(EASTL_CHAR8T_FLAG "-fchar8_t") + set(EASTL_NO_CHAR8T_FLAG "-fno-char8_t") +elseif(EASTL_HAS_ZCCHAR8T_FLAG) + set(EASTL_CHAR8T_FLAG "/Zc:char8_t") + set(EASTL_NO_CHAR8T_FLAG "/Zc:char8_t-") +endif() + +#------------------------------------------------------------------------------------------- +# Compiler Flags +#------------------------------------------------------------------------------------------- +if(UNIX AND "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Intel" ) + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -fasm-blocks" ) +endif() + +# NOT LESS == GREATER_OR_EQUAL; CMake doesn't support this out of the box. +if(CMAKE_CXX_COMPILER_ID MATCHES "AppleClang") + if(NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.2")) + SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17") + endif() + if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.2" AND (NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.1"))) + SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14") + endif() + if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.1" AND (NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.3"))) + SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1y") + endif() + # It seems Apple started changing version numbers after 3.1, going straight to 4.0 after 3.1. + if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.3" AND (NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.1"))) + SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11") + endif() + if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.1") + message(FATAL_ERROR "Building with a Apple clang version less than 3.1 is not supported.") + endif() +elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND NOT CMAKE_CXX_SIMULATE_ID MATCHES "MSVC") # clang, but not clang-cl. + # non-Apple clangs uses different versioning. + if(NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.0.0")) + SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17") + endif() + if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.0.0" AND (NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.5.0"))) + SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14") + endif() + if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.5.0" AND (NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.2"))) + SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1y") + endif() + if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.2" AND (NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.0"))) + SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11") + endif() + if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.0") + message(FATAL_ERROR "Building with a clang version less than 3.0 is not supported.") + endif() +elseif(CMAKE_CXX_COMPILER_ID MATCHES "GNU") + if(NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "7.0.0")) + SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17") + endif() + if((CMAKE_CXX_COMPILER_VERSION VERSION_LESS "7.0.0") AND (NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.2.0"))) + SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14") + endif() + if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.2.0" AND (NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.8.1"))) + SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1y") + endif() + if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.8.1" AND (NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.7.3"))) + SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11") + endif() + if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.7.3") + message(FATAL_ERROR "Building with a gcc version less than 4.7.3 is not supported.") + endif() +elseif(CMAKE_CXX_COMPILER_ID MATCHES "MSVC") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++latest /W4 /permissive-") +endif() + + +if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU") + set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -D_DEBUG") + set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG") +endif() |