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33 lines
975 B
CMake
33 lines
975 B
CMake
# Detect the location of compiler-specific header files
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# such as stdbool.h or xmmintrin.h
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function(GetCompilerInclude OutputVar)
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file(WRITE "${CMAKE_BINARY_DIR}/cinctest.c" "#include <cpuid.h>")
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execute_process(COMMAND "${CMAKE_C_COMPILER}" -M "${CMAKE_BINARY_DIR}/cinctest.c"
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RESULT_VARIABLE BuildResult
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OUTPUT_VARIABLE BuildOutput
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)
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if (BuildResult)
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message(FATAL_ERROR "Cannot detect compiler header include path")
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endif (BuildResult)
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separate_arguments(BuildOutput)
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foreach (str ${BuildOutput})
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string(REGEX REPLACE "\n$" "" str "${str}")
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# message(STATUS "Output: ${str}")
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if (str MATCHES "cpuid.h$")
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# message(STATUS "Str matched: ${str}")
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string(REGEX REPLACE "cpuid\\.h" "" IncPath "${str}")
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endif (str MATCHES "cpuid.h$")
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endforeach (str)
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if (NOT IncPath)
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message(FATAL_ERROR "Cannot parse compiler output to detect include path")
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endif (NOT IncPath)
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set(${OutputVar} ${IncPath} PARENT_SCOPE)
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endfunction(GetCompilerInclude)
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