Add macro which checks if the header file exists
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14
Modules/CheckIncludeFile.c.in
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14
Modules/CheckIncludeFile.c.in
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#ifdef CHECK_INCLUDE_FILE
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#include <${CHECK_INCLUDE_FILE_VAR}>
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int main()
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{
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return 0;
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}
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#else /* CHECK_INCLUDE_FILE */
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# error "CHECK_INCLUDE_FILE has to specify the include file"
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#endif /* CHECK_INCLUDE_FILE */
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26
Modules/CheckIncludeFile.cmake
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26
Modules/CheckIncludeFile.cmake
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#
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# Check if the include file exists.
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#
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# CHECK_INCLUDE_FILE - macro which checks the include file exists.
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# INCLUDE - name of include file
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# VARIABLE - variable to return result
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#
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MACRO(CHECK_INCLUDE_FILE INCLUDE VARIABLE)
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SET(CHECK_INCLUDE_FILE_VAR ${INCLUDE})
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CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CheckIncludeFile.c.in
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${PROJECT_BINARY_DIR}/CheckIncludeFile.c IMMEDIATE)
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TRY_COMPILE(COMPILE_OK
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${PROJECT_BINARY_DIR}
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${PROJECT_BINARY_DIR}/CheckIncludeFile.c
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COMPILE_DEFINITIONS -DCHECK_INCLUDE_FILE="${INCLUDE}"
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OUTPUT_VARIABLE OUTPUT)
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IF(COMPILE_OK)
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SET(${VARIABLE} ${COMPILE_OK})
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ELSE(COMPILE_OK)
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WRITE_FILE(${PROJECT_BINARY_DIR}/CMakeError.log
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"Determining if the include file ${INCLUDE} "
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"exists failed with the following output:\n"
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"${OUTPUT}\n")
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ENDIF(COMPILE_OK)
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ENDMACRO(CHECK_INCLUDE_FILE)
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