28 lines
1.0 KiB
CMake
28 lines
1.0 KiB
CMake
#
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# Check if the type exists and determine size of type. if the type
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# exists, the size will be stored to the variable.
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#
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# CHECK_TYPE_SIZE - macro which checks the size of type
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# VARIABLE - variable to store size if the type exists.
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#
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MACRO(CHECK_TYPE_SIZE TYPE VARIABLE)
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SET(MACRO_CHECK_TYPE_SIZE_FLAGS -DCHECK_SIZE_OF="${TYPE}")
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IF(HAVE_SYS_TYPES_H)
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SET(MACRO_CHECK_TYPE_SIZE_FLAGS "${MACRO_CHECK_TYPE_SIZE_FLAGS} -DHAVE_SYS_TYPES_H")
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ENDIF(HAVE_SYS_TYPES_H)
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IF(HAVE_STDINT_H)
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SET(MACRO_CHECK_TYPE_SIZE_FLAGS "${MACRO_CHECK_TYPE_SIZE_FLAGS} -DHAVE_STDINT_H")
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ENDIF(HAVE_STDINT_H)
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TRY_RUN(${VARIABLE} HAVE_${VARIABLE}
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${PROJECT_BINARY_DIR}
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${CMAKE_ROOT}/Modules/CheckSizeOf.c
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COMPILE_DEFINITIONS ${MACRO_CHECK_TYPE_SIZE_FLAGS}
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OUTPUT_VARIABLE OUTPUT)
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IF(NOT HAVE_${VARIABLE})
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WRITE_FILE(${PROJECT_BINARY_DIR}/CMakeError.log
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"Determining size of ${TYPE} failed with the following output:\n${OUTPUT}\n")
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ENDIF(NOT HAVE_${VARIABLE})
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ENDMACRO(CHECK_TYPE_SIZE)
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