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@@ -0,0 +1,51 @@
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+#
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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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+# HAVE_${VARIABLE} - does the variable exists or not
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+#
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+
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+MACRO(CHECK_TYPE_SIZE TYPE VARIABLE)
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+ SET(CMAKE_ALLOW_UNKNOWN_VARIABLE_READ_ACCESS 1)
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+ IF("HAVE_${VARIABLE}" MATCHES "^HAVE_${VARIABLE}$")
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+ SET(MACRO_CHECK_TYPE_SIZE_FLAGS
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+ "-DCHECK_TYPE_SIZE_TYPE=\"${TYPE}\" ${CMAKE_REQUIRED_FLAGS}")
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+ FOREACH(def HAVE_SYS_TYPES_H HAVE_STDINT_H HAVE_STDDEF_H)
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+ IF("${def}")
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+ SET(MACRO_CHECK_TYPE_SIZE_FLAGS
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+ "${MACRO_CHECK_TYPE_SIZE_FLAGS} -D${def}")
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+ ENDIF("${def}")
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+ ENDFOREACH(def)
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+ SET(CHECK_TYPE_SIZE_PREMAIN)
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+ FOREACH(def ${CMAKE_EXTRA_INCLUDE_FILES})
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+ SET(CHECK_TYPE_SIZE_PREMAIN "${CHECK_TYPE_SIZE_PREMAIN}#include \"${def}\"\n")
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+ ENDFOREACH(def)
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+ CONFIGURE_FILE("${CMAKE_ROOT}/Modules/CheckTypeSize.c.in"
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+ "${CMAKE_BINARY_DIR}/CMakeTmp/CheckTypeSize.c" IMMEDIATE @ONLY)
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+ FILE(READ "${CMAKE_BINARY_DIR}/CMakeTmp/CheckTypeSize.c"
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+ CHECK_TYPE_SIZE_FILE_CONTENT)
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+ MESSAGE(STATUS "Check size of ${TYPE}")
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+ IF(CMAKE_REQUIRED_LIBRARIES)
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+ SET(CHECK_TYPE_SIZE_ADD_LIBRARIES
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+ "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
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+ ENDIF(CMAKE_REQUIRED_LIBRARIES)
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+ TRY_RUN(${VARIABLE} HAVE_${VARIABLE}
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+ ${CMAKE_BINARY_DIR}
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+ "${CMAKE_BINARY_DIR}/CMakeTmp/CheckTypeSize.c"
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+ CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_TYPE_SIZE_FLAGS}
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+ "${CHECK_TYPE_SIZE_ADD_LIBRARIES}"
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+ OUTPUT_VARIABLE OUTPUT)
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+ IF(HAVE_${VARIABLE})
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+ MESSAGE(STATUS "Check size of ${TYPE} - done")
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+ FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeOutput.log
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+ "Determining size of ${TYPE} passed with the following output:\n${OUTPUT}\n\n")
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+ ELSE(HAVE_${VARIABLE})
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+ MESSAGE(STATUS "Check size of ${TYPE} - failed")
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+ FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeError.log
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+ "Determining size of ${TYPE} failed with the following output:\n${OUTPUT}\nCheckTypeSize.c:\n${CHECK_TYPE_SIZE_FILE_CONTENT}\n\n")
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+ ENDIF(HAVE_${VARIABLE})
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+ ENDIF("HAVE_${VARIABLE}" MATCHES "^HAVE_${VARIABLE}$")
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+ SET(CMAKE_ALLOW_UNKNOWN_VARIABLE_READ_ACCESS )
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+ENDMACRO(CHECK_TYPE_SIZE)
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