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Add framework to detect compiler version with its id (#12408)
Teach CMakePlatformId.h to construct an "INFO:compiler_version[]" string literal from macros COMPILER_VERSION_(MAJOR|MINOR|PATCH|TWEAK) to be defined in CMake(C|CXX)CompilerId.(c|cpp) for each compiler. Provide conversion macros DEC() and HEX() to decode decimal or hex digits from integer values. Parse the version out of the compiler id binary along with the other INFO values already present. Store the result in variable CMAKE_<LANG>_COMPILER_VERSION in the format "major[.minor[.patch[.tweak]]]". Save the value persistently in CMake(C|CXX)Compiler.cmake in the build tree. Document the variable for internal use since we do not set it everywhere yet. Report the compiler version on the compiler id result line e.g. The C compiler identification is GNU 4.5.2 Report CMAKE_(C|CXX)_COMPILER_(ID|VERSION) in SystemInformation test.
This commit is contained in:
Brad King
parent
e0bc42aa4f
commit
fa7141f5ad
@ -1,6 +1,7 @@
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SET(CMAKE_C_COMPILER "@CMAKE_C_COMPILER@")
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SET(CMAKE_C_COMPILER_ARG1 "@CMAKE_C_COMPILER_ARG1@")
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SET(CMAKE_C_COMPILER_ID "@CMAKE_C_COMPILER_ID@")
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SET(CMAKE_C_COMPILER_VERSION "@CMAKE_C_COMPILER_VERSION@")
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SET(CMAKE_C_PLATFORM_ID "@CMAKE_C_PLATFORM_ID@")
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@SET_MSVC_C_ARCHITECTURE_ID@
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SET(CMAKE_AR "@CMAKE_AR@")
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@ -109,6 +109,9 @@ int main(int argc, char* argv[])
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require += info_compiler[argc];
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require += info_platform[argc];
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require += info_arch[argc];
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#ifdef COMPILER_VERSION_MAJOR
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require += info_version[argc];
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#endif
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(void)argv;
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return require;
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}
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@ -1,6 +1,7 @@
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SET(CMAKE_CXX_COMPILER "@CMAKE_CXX_COMPILER@")
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SET(CMAKE_CXX_COMPILER_ARG1 "@CMAKE_CXX_COMPILER_ARG1@")
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SET(CMAKE_CXX_COMPILER_ID "@CMAKE_CXX_COMPILER_ID@")
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SET(CMAKE_CXX_COMPILER_VERSION "@CMAKE_CXX_COMPILER_VERSION@")
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SET(CMAKE_CXX_PLATFORM_ID "@CMAKE_CXX_PLATFORM_ID@")
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@SET_MSVC_CXX_ARCHITECTURE_ID@
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SET(CMAKE_AR "@CMAKE_AR@")
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@ -96,6 +96,9 @@ int main(int argc, char* argv[])
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int require = 0;
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require += info_compiler[argc];
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require += info_platform[argc];
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#ifdef COMPILER_VERSION_MAJOR
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require += info_version[argc];
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#endif
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(void)argv;
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return require;
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}
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@ -55,8 +55,13 @@ FUNCTION(CMAKE_DETERMINE_COMPILER_ID lang flagvar src)
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# Display the final identification result.
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IF(CMAKE_${lang}_COMPILER_ID)
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IF(CMAKE_${lang}_COMPILER_VERSION)
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SET(_version " ${CMAKE_${lang}_COMPILER_VERSION}")
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ELSE()
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SET(_version "")
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ENDIF()
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MESSAGE(STATUS "The ${lang} compiler identification is "
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"${CMAKE_${lang}_COMPILER_ID}")
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"${CMAKE_${lang}_COMPILER_ID}${_version}")
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ELSE(CMAKE_${lang}_COMPILER_ID)
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MESSAGE(STATUS "The ${lang} compiler identification is unknown")
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ENDIF(CMAKE_${lang}_COMPILER_ID)
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@ -65,6 +70,7 @@ FUNCTION(CMAKE_DETERMINE_COMPILER_ID lang flagvar src)
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SET(CMAKE_${lang}_PLATFORM_ID "${CMAKE_${lang}_PLATFORM_ID}" PARENT_SCOPE)
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SET(MSVC_${lang}_ARCHITECTURE_ID "${MSVC_${lang}_ARCHITECTURE_ID}"
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PARENT_SCOPE)
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SET(CMAKE_${lang}_COMPILER_VERSION "${CMAKE_${lang}_COMPILER_VERSION}" PARENT_SCOPE)
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ENDFUNCTION(CMAKE_DETERMINE_COMPILER_ID)
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#-----------------------------------------------------------------------------
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@ -177,9 +183,10 @@ FUNCTION(CMAKE_DETERMINE_COMPILER_ID_CHECK lang file)
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IF(NOT CMAKE_${lang}_COMPILER_ID)
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# Read the compiler identification string from the executable file.
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SET(COMPILER_ID)
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SET(COMPILER_VERSION)
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SET(PLATFORM_ID)
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FILE(STRINGS ${file}
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CMAKE_${lang}_COMPILER_ID_STRINGS LIMIT_COUNT 3 REGEX "INFO:")
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CMAKE_${lang}_COMPILER_ID_STRINGS LIMIT_COUNT 4 REGEX "INFO:")
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SET(HAVE_COMPILER_TWICE 0)
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FOREACH(info ${CMAKE_${lang}_COMPILER_ID_STRINGS})
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IF("${info}" MATCHES ".*INFO:compiler\\[([^]\"]*)\\].*")
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@ -197,6 +204,11 @@ FUNCTION(CMAKE_DETERMINE_COMPILER_ID_CHECK lang file)
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STRING(REGEX REPLACE ".*INFO:arch\\[([^]]*)\\].*" "\\1"
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ARCHITECTURE_ID "${info}")
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ENDIF("${info}" MATCHES ".*INFO:arch\\[([^]\"]*)\\].*")
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IF("${info}" MATCHES ".*INFO:compiler_version\\[([^]\"]*)\\].*")
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STRING(REGEX REPLACE ".*INFO:compiler_version\\[([^]]*)\\].*" "\\1" COMPILER_VERSION "${info}")
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STRING(REGEX REPLACE "^0+([0-9])" "\\1" COMPILER_VERSION "${COMPILER_VERSION}")
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STRING(REGEX REPLACE "\\.0+([0-9])" ".\\1" COMPILER_VERSION "${COMPILER_VERSION}")
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ENDIF("${info}" MATCHES ".*INFO:compiler_version\\[([^]\"]*)\\].*")
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ENDFOREACH(info)
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# Check if a valid compiler and platform were found.
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@ -204,6 +216,7 @@ FUNCTION(CMAKE_DETERMINE_COMPILER_ID_CHECK lang file)
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SET(CMAKE_${lang}_COMPILER_ID "${COMPILER_ID}")
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SET(CMAKE_${lang}_PLATFORM_ID "${PLATFORM_ID}")
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SET(MSVC_${lang}_ARCHITECTURE_ID "${ARCHITECTURE_ID}")
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SET(CMAKE_${lang}_COMPILER_VERSION "${COMPILER_VERSION}")
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ENDIF(COMPILER_ID AND NOT COMPILER_ID_TWICE)
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# Check the compiler identification string.
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@ -251,6 +264,7 @@ FUNCTION(CMAKE_DETERMINE_COMPILER_ID_CHECK lang file)
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SET(CMAKE_${lang}_PLATFORM_ID "${CMAKE_${lang}_PLATFORM_ID}" PARENT_SCOPE)
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SET(MSVC_${lang}_ARCHITECTURE_ID "${MSVC_${lang}_ARCHITECTURE_ID}"
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PARENT_SCOPE)
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SET(CMAKE_${lang}_COMPILER_VERSION "${CMAKE_${lang}_COMPILER_VERSION}" PARENT_SCOPE)
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SET(CMAKE_EXECUTABLE_FORMAT "${CMAKE_EXECUTABLE_FORMAT}" PARENT_SCOPE)
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ENDFUNCTION(CMAKE_DETERMINE_COMPILER_ID_CHECK lang)
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@ -105,6 +105,46 @@
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# define ARCHITECTURE_ID ""
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#endif
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/* Convert integer to decimal digit literals. */
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#define DEC(n) \
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('0' + (((n) / 10000000)%10)), \
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('0' + (((n) / 1000000)%10)), \
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('0' + (((n) / 100000)%10)), \
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('0' + (((n) / 10000)%10)), \
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('0' + (((n) / 1000)%10)), \
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('0' + (((n) / 100)%10)), \
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('0' + (((n) / 10)%10)), \
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('0' + ((n) % 10))
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/* Convert integer to hex digit literals. */
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#define HEX(n) \
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('0' + ((n)>>28 & 0xF)), \
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('0' + ((n)>>24 & 0xF)), \
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('0' + ((n)>>20 & 0xF)), \
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('0' + ((n)>>16 & 0xF)), \
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('0' + ((n)>>12 & 0xF)), \
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('0' + ((n)>>8 & 0xF)), \
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('0' + ((n)>>4 & 0xF)), \
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('0' + ((n) & 0xF))
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/* Construct a string literal encoding the version number components. */
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#ifdef COMPILER_VERSION_MAJOR
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char const info_version[] = {
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'I', 'N', 'F', 'O', ':',
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'c','o','m','p','i','l','e','r','_','v','e','r','s','i','o','n','[',
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COMPILER_VERSION_MAJOR,
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# ifdef COMPILER_VERSION_MINOR
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'.', COMPILER_VERSION_MINOR,
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# ifdef COMPILER_VERSION_PATCH
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'.', COMPILER_VERSION_PATCH,
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# ifdef COMPILER_VERSION_TWEAK
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'.', COMPILER_VERSION_TWEAK,
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# endif
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# endif
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# endif
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']','\0'};
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#endif
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/* Construct the string literal in pieces to prevent the source from
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getting matched. Store it in a pointer rather than an array
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because some compilers will just produce instructions to fill the
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@ -1278,6 +1278,15 @@ void cmDocumentVariables::DefineVariables(cmake* cm)
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false,
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"Variables for Languages");
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cm->DefineProperty
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("CMAKE_<LANG>_COMPILER_VERSION", cmProperty::VARIABLE,
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"An internal variable subject to change.",
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"Compiler version in major[.minor[.patch[.tweak]]] format. "
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"This variable is reserved for internal use by CMake and is not "
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"guaranteed to be set.",
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false,
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"Variables for Languages");
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cm->DefineProperty
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("CMAKE_INTERNAL_PLATFORM_ABI", cmProperty::VARIABLE,
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"An internal variable subject to change.",
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@ -17,6 +17,10 @@ CMAKE_CXX_COMPILER == "${CMAKE_CXX_COMPILER}"
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CMAKE_C_COMPILER == "${CMAKE_C_COMPILER}"
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CMAKE_COMPILER_IS_GNUCC == "${CMAKE_COMPILER_IS_GNUCC}"
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CMAKE_COMPILER_IS_GNUCXX == "${CMAKE_COMPILER_IS_GNUCXX}"
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CMAKE_C_COMPILER_ID == "${CMAKE_C_COMPILER_ID}"
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CMAKE_C_COMPILER_VERSION == "${CMAKE_C_COMPILER_VERSION}"
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CMAKE_CXX_COMPILER_ID == "${CMAKE_CXX_COMPILER_ID}"
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CMAKE_CXX_COMPILER_VERSION == "${CMAKE_CXX_COMPILER_VERSION}"
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// C shared library flag
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CMAKE_SHARED_LIBRARY_C_FLAGS == "${CMAKE_SHARED_LIBRARY_C_FLAGS}"
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