d3fc848ddd
Ancient versions of CMake required else(), endif(), and similar block termination commands to have arguments matching the command starting the block. This is no longer the preferred style.
68 lines
2.8 KiB
CMake
68 lines
2.8 KiB
CMake
include(CheckCXXCompilerFlag)
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include(CheckCCompilerFlag)
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function(EnableCompilerFlag _flag _C _CXX)
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string(REGEX REPLACE "\\+" "PLUS" varname "${_flag}")
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string(REGEX REPLACE "[^A-Za-z0-9]+" "_" varname "${varname}")
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string(REGEX REPLACE "^_+" "" varname "${varname}")
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string(TOUPPER "${varname}" varname)
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if (_C)
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CHECK_C_COMPILER_FLAG(${_flag} C_FLAG_${varname})
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if (C_FLAG_${varname})
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_flag}" PARENT_SCOPE)
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endif ()
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endif ()
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if (_CXX)
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CHECK_CXX_COMPILER_FLAG(${_flag} CXX_FLAG_${varname})
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if (CXX_FLAG_${varname})
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${_flag}" PARENT_SCOPE)
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endif ()
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endif ()
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endfunction()
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macro(ADD_ZSTD_COMPILATION_FLAGS)
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if (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang" OR MINGW) #Not only UNIX but also WIN32 for MinGW
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#Set c++11 by default
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EnableCompilerFlag("-std=c++11" false true)
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#Set c99 by default
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EnableCompilerFlag("-std=c99" true false)
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EnableCompilerFlag("-Wall" true true)
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EnableCompilerFlag("-Wextra" true true)
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EnableCompilerFlag("-Wundef" true true)
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EnableCompilerFlag("-Wshadow" true true)
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EnableCompilerFlag("-Wcast-align" true true)
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EnableCompilerFlag("-Wcast-qual" true true)
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EnableCompilerFlag("-Wstrict-prototypes" true false)
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elseif (MSVC) # Add specific compilation flags for Windows Visual
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set(ACTIVATE_MULTITHREADED_COMPILATION "ON" CACHE BOOL "activate multi-threaded compilation (/MP flag)")
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if (CMAKE_GENERATOR MATCHES "Visual Studio" AND ACTIVATE_MULTITHREADED_COMPILATION)
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EnableCompilerFlag("/MP" true true)
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endif ()
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# UNICODE SUPPORT
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EnableCompilerFlag("/D_UNICODE" true true)
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EnableCompilerFlag("/DUNICODE" true true)
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endif ()
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# Remove duplicates compilation flags
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foreach (flag_var CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
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CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
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CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
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CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
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separate_arguments(${flag_var})
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list(REMOVE_DUPLICATES ${flag_var})
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string(REPLACE ";" " " ${flag_var} "${${flag_var}}")
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endforeach ()
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if (MSVC AND ZSTD_USE_STATIC_RUNTIME)
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foreach (flag_var CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
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CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
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CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
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CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
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string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
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endforeach ()
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endif ()
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endmacro()
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