258 lines
12 KiB
CMake
258 lines
12 KiB
CMake
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MACRO(ADD_EXTRA_COMPILATION_FLAGS)
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include(CheckCXXCompilerFlag)
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include(CheckCCompilerFlag)
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if (CMAKE_COMPILER_IS_GNUCXX OR MINGW) #Not only UNIX but also WIN32 for MinGW
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set(POSITION_INDEPENDENT_CODE_FLAG "-fPIC")
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CHECK_C_COMPILER_FLAG(${POSITION_INDEPENDENT_CODE_FLAG} POSITION_INDEPENDENT_CODE_FLAG_ALLOWED)
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if (POSITION_INDEPENDENT_CODE_FLAG_ALLOWED)
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MESSAGE("Compiler flag ${POSITION_INDEPENDENT_CODE_FLAG} allowed")
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set(ACTIVATE_POSITION_INDEPENDENT_CODE_FLAG "ON" CACHE BOOL "activate -fPIC flag")
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else ()
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MESSAGE("Compiler flag ${POSITION_INDEPENDENT_CODE_FLAG} not allowed")
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endif (POSITION_INDEPENDENT_CODE_FLAG_ALLOWED)
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set(WARNING_UNDEF "-Wundef")
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CHECK_C_COMPILER_FLAG(${WARNING_UNDEF} WARNING_UNDEF_ALLOWED)
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if (WARNING_UNDEF_ALLOWED)
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MESSAGE("Compiler flag ${WARNING_UNDEF} allowed")
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set(ACTIVATE_WARNING_UNDEF "ON" CACHE BOOL "activate -Wundef flag")
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else ()
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MESSAGE("Compiler flag ${WARNING_UNDEF} not allowed")
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endif (WARNING_UNDEF_ALLOWED)
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set(WARNING_SHADOW "-Wshadow")
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CHECK_C_COMPILER_FLAG(${WARNING_SHADOW} WARNING_SHADOW_ALLOWED)
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if (WARNING_SHADOW_ALLOWED)
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MESSAGE("Compiler flag ${WARNING_SHADOW} allowed")
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set(ACTIVATE_WARNING_SHADOW "ON" CACHE BOOL "activate -Wshadow flag")
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else ()
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MESSAGE("Compiler flag ${WARNING_SHADOW} not allowed")
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endif (WARNING_SHADOW_ALLOWED)
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set(WARNING_CAST_ALIGN "-Wcast-align")
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CHECK_C_COMPILER_FLAG(${WARNING_CAST_ALIGN} WARNING_CAST_ALIGN_ALLOWED)
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if (WARNING_CAST_ALIGN_ALLOWED)
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MESSAGE("Compiler flag ${WARNING_CAST_ALIGN} allowed")
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set(ACTIVATE_WARNING_CAST_ALIGN "ON" CACHE BOOL "activate -Wcast-align flag")
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else ()
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MESSAGE("Compiler flag ${WARNING_CAST_ALIGN} not allowed")
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endif (WARNING_CAST_ALIGN_ALLOWED)
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set(WARNING_CAST_QUAL "-Wcast-qual")
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CHECK_C_COMPILER_FLAG(${WARNING_CAST_QUAL} WARNING_CAST_QUAL_ALLOWED)
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if (WARNING_CAST_QUAL_ALLOWED)
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MESSAGE("Compiler flag ${WARNING_CAST_QUAL} allowed")
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set(ACTIVATE_WARNING_CAST_QUAL "ON" CACHE BOOL "activate -Wcast-qual flag")
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else ()
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MESSAGE("Compiler flag ${WARNING_CAST_QUAL} not allowed")
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endif (WARNING_CAST_QUAL_ALLOWED)
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set(WARNING_STRICT_PROTOTYPES "-Wstrict-prototypes")
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CHECK_C_COMPILER_FLAG(${WARNING_STRICT_PROTOTYPES} WARNING_STRICT_PROTOTYPES_ALLOWED)
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if (WARNING_STRICT_PROTOTYPES_ALLOWED)
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MESSAGE("Compiler flag ${WARNING_STRICT_PROTOTYPES} allowed")
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set(ACTIVATE_WARNING_STRICT_PROTOTYPES "ON" CACHE BOOL "activate -Wstrict-prototypes flag")
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else ()
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MESSAGE("Compiler flag ${WARNING_STRICT_PROTOTYPES} not allowed")
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endif (WARNING_STRICT_PROTOTYPES_ALLOWED)
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set(WARNING_ALL "-Wall")
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CHECK_C_COMPILER_FLAG(${WARNING_ALL} WARNING_ALL_ALLOWED)
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if (WARNING_ALL_ALLOWED)
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MESSAGE("Compiler flag ${WARNING_ALL} allowed")
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set(ACTIVATE_WARNING_ALL "ON" CACHE BOOL "activate -Wall flag")
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else ()
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MESSAGE("Compiler flag ${WARNING_ALL} not allowed")
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endif (WARNING_ALL_ALLOWED)
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set(WARNING_EXTRA "-Wextra")
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CHECK_C_COMPILER_FLAG(${WARNING_EXTRA} WARNING_EXTRA_ALLOWED)
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if (WARNING_EXTRA_ALLOWED)
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MESSAGE("Compiler flag ${WARNING_EXTRA} allowed")
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set(ACTIVATE_WARNING_EXTRA "ON" CACHE BOOL "activate -Wextra flag")
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else ()
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MESSAGE("Compiler flag ${WARNING_EXTRA} not allowed")
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endif (WARNING_EXTRA_ALLOWED)
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set(WARNING_FLOAT_EQUAL "-Wfloat-equal")
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CHECK_C_COMPILER_FLAG(${WARNING_FLOAT_EQUAL} WARNING_FLOAT_EQUAL_ALLOWED)
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if (WARNING_FLOAT_EQUAL_ALLOWED)
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MESSAGE("Compiler flag ${WARNING_FLOAT_EQUAL} allowed")
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set(ACTIVATE_WARNING_FLOAT_EQUAL "OFF" CACHE BOOL "activate -Wfloat-equal flag")
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else ()
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MESSAGE("Compiler flag ${WARNING_FLOAT_EQUAL} not allowed")
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endif (WARNING_FLOAT_EQUAL_ALLOWED)
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set(WARNING_SIGN_CONVERSION "-Wsign-conversion")
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CHECK_C_COMPILER_FLAG(${WARNING_SIGN_CONVERSION} WARNING_SIGN_CONVERSION_ALLOWED)
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if (WARNING_SIGN_CONVERSION_ALLOWED)
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MESSAGE("Compiler flag ${WARNING_SIGN_CONVERSION} allowed")
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set(ACTIVATE_WARNING_SIGN_CONVERSION "OFF" CACHE BOOL "activate -Wsign-conversion flag")
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else ()
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MESSAGE("Compiler flag ${WARNING_SIGN_CONVERSION} not allowed")
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endif (WARNING_SIGN_CONVERSION_ALLOWED)
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if (ACTIVATE_POSITION_INDEPENDENT_CODE_FLAG)
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list(APPEND CMAKE_C_FLAGS ${POSITION_INDEPENDENT_CODE_FLAG})
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else ()
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string(REPLACE ${POSITION_INDEPENDENT_CODE_FLAG} "" CMAKE_C_FLAGS "${POSITION_INDEPENDENT_CODE_FLAG}")
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endif (ACTIVATE_POSITION_INDEPENDENT_CODE_FLAG)
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if (ACTIVATE_WARNING_UNDEF)
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list(APPEND CMAKE_CXX_FLAGS ${WARNING_UNDEF})
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list(APPEND CMAKE_C_FLAGS ${WARNING_UNDEF})
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else ()
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string(REPLACE ${WARNING_UNDEF} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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string(REPLACE ${WARNING_UNDEF} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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endif (ACTIVATE_WARNING_UNDEF)
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if (ACTIVATE_WARNING_SHADOW)
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list(APPEND CMAKE_CXX_FLAGS ${WARNING_SHADOW})
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list(APPEND CMAKE_C_FLAGS ${WARNING_SHADOW})
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else ()
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string(REPLACE ${WARNING_SHADOW} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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string(REPLACE ${WARNING_SHADOW} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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endif (ACTIVATE_WARNING_SHADOW)
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if (ACTIVATE_WARNING_CAST_QUAL)
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list(APPEND CMAKE_CXX_FLAGS ${WARNING_CAST_QUAL})
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list(APPEND CMAKE_C_FLAGS ${WARNING_CAST_QUAL})
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else ()
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string(REPLACE ${WARNING_CAST_QUAL} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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string(REPLACE ${WARNING_CAST_QUAL} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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endif (ACTIVATE_WARNING_CAST_QUAL)
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if (ACTIVATE_WARNING_CAST_ALIGN)
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list(APPEND CMAKE_CXX_FLAGS ${WARNING_CAST_ALIGN})
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list(APPEND CMAKE_C_FLAGS ${WARNING_CAST_ALIGN})
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else ()
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string(REPLACE ${WARNING_CAST_ALIGN} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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string(REPLACE ${WARNING_CAST_ALIGN} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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endif (ACTIVATE_WARNING_CAST_ALIGN)
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if (ACTIVATE_WARNING_STRICT_PROTOTYPES)
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list(APPEND CMAKE_CXX_FLAGS ${WARNING_STRICT_PROTOTYPES})
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list(APPEND CMAKE_C_FLAGS ${WARNING_STRICT_PROTOTYPES})
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else ()
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string(REPLACE ${WARNING_STRICT_PROTOTYPES} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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string(REPLACE ${WARNING_STRICT_PROTOTYPES} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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endif (ACTIVATE_WARNING_STRICT_PROTOTYPES)
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if (ACTIVATE_WARNING_ALL)
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list(APPEND CMAKE_CXX_FLAGS ${WARNING_ALL})
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list(APPEND CMAKE_C_FLAGS ${WARNING_ALL})
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else ()
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string(REPLACE ${WARNING_ALL} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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string(REPLACE ${WARNING_ALL} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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endif (ACTIVATE_WARNING_ALL)
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if (ACTIVATE_WARNING_EXTRA)
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list(APPEND CMAKE_CXX_FLAGS ${WARNING_EXTRA})
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list(APPEND CMAKE_C_FLAGS ${WARNING_EXTRA})
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else ()
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string(REPLACE ${WARNING_EXTRA} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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string(REPLACE ${WARNING_EXTRA} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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endif (ACTIVATE_WARNING_EXTRA)
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if (ACTIVATE_WARNING_FLOAT_EQUAL)
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list(APPEND CMAKE_CXX_FLAGS ${WARNING_FLOAT_EQUAL})
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list(APPEND CMAKE_C_FLAGS ${WARNING_FLOAT_EQUAL})
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else ()
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string(REPLACE ${WARNING_FLOAT_EQUAL} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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string(REPLACE ${WARNING_FLOAT_EQUAL} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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endif (ACTIVATE_WARNING_FLOAT_EQUAL)
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if (ACTIVATE_WARNING_SIGN_CONVERSION)
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list(APPEND CMAKE_CXX_FLAGS ${WARNING_SIGN_CONVERSION})
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list(APPEND CMAKE_C_FLAGS ${WARNING_SIGN_CONVERSION})
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else ()
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string(REPLACE ${WARNING_SIGN_CONVERSION} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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string(REPLACE ${WARNING_SIGN_CONVERSION} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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endif (ACTIVATE_WARNING_SIGN_CONVERSION)
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#Set c++11 by default
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list(APPEND CMAKE_CXX_FLAGS "-std=c++11")
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#Set c99 by default
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list(APPEND CMAKE_C_FLAGS "-std=c99")
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elseif (MSVC)
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# Add specific compilation flags for Windows Visual
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set(WARNING_ALL "/Wall")
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CHECK_C_COMPILER_FLAG(${WARNING_ALL} WARNING_ALL_ALLOWED)
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if (WARNING_ALL_ALLOWED)
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MESSAGE("Compiler flag ${WARNING_ALL} allowed")
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set(ACTIVATE_WARNING_ALL "OFF" CACHE BOOL "activate /Wall flag")
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else ()
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MESSAGE("Compiler flag ${WARNING_ALL} not allowed")
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endif (WARNING_ALL_ALLOWED)
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if (ACTIVATE_WARNING_ALL)
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list(APPEND CMAKE_CXX_FLAGS ${WARNING_ALL})
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list(APPEND CMAKE_C_FLAGS ${WARNING_ALL})
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else ()
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string(REPLACE ${WARNING_ALL} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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string(REPLACE ${WARNING_ALL} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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endif ()
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if (MSVC80 OR MSVC90 OR MSVC10 OR MSVC11)
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# To avoid compiler warning (level 4) C4571, compile with /EHa if you still want
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# your catch(...) blocks to catch structured exceptions.
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list(APPEND CMAKE_CXX_FLAGS "/EHa")
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endif (MSVC80 OR MSVC90 OR MSVC10 OR MSVC11)
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set(MULTITHREADED_COMPILATION "/MP")
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MESSAGE("Compiler flag ${MULTITHREADED_COMPILATION} allowed")
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set(ACTIVATE_MULTITHREADED_COMPILATION "ON" CACHE BOOL "activate /MP flag")
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if (ACTIVATE_MULTITHREADED_COMPILATION)
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list(APPEND CMAKE_CXX_FLAGS ${MULTITHREADED_COMPILATION})
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list(APPEND CMAKE_C_FLAGS ${MULTITHREADED_COMPILATION})
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else ()
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string(REPLACE ${MULTITHREADED_COMPILATION} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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string(REPLACE ${MULTITHREADED_COMPILATION} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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endif (ACTIVATE_MULTITHREADED_COMPILATION)
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#For exceptions
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list(APPEND CMAKE_CXX_FLAGS "/EHsc")
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endif ()
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# Remove duplicates compilation flags
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separate_arguments(CMAKE_CXX_FLAGS)
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list(REMOVE_DUPLICATES CMAKE_CXX_FLAGS)
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string(REPLACE ";" " " CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "common C++ build flags" FORCE)
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separate_arguments(CMAKE_C_FLAGS)
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list(REMOVE_DUPLICATES CMAKE_C_FLAGS)
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string(REPLACE ";" " " CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "common C build flags" FORCE)
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if (MSVC)
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# Replace /MT to /MD flag
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FOREACH (flag_var 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 "/MT" "/MD" ${flag_var} "${${flag_var}}")
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ENDFOREACH (flag_var)
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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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STRING(REGEX REPLACE "/MT" "/MD" ${flag_var} "${${flag_var}}")
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ENDFOREACH (flag_var)
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endif ()
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "Updated flags" FORCE)
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set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}" CACHE STRING "Updated flags" FORCE)
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}" CACHE STRING "Updated flags" FORCE)
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set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL}" CACHE STRING "Updated flags" FORCE)
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set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO}" CACHE STRING "Updated flags" FORCE)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "Updated flags" FORCE)
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set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG}" CACHE STRING "Updated flags" FORCE)
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set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}" CACHE STRING "Updated flags" FORCE)
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set(CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL}" CACHE STRING "Updated flags" FORCE)
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set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO}" CACHE STRING "Updated flags" FORCE)
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ENDMACRO(ADD_EXTRA_COMPILATION_FLAGS)
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