2003-01-02 02:00:49 +03:00
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#
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# Check if the files can be included
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#
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# CHECK_INCLUDE_FILES - macro which checks the include file exists.
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# INCLUDE - list of files to include
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# VARIABLE - variable to return result
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#
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MACRO(CHECK_INCLUDE_FILES INCLUDE VARIABLE)
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IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
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SET(CHECK_INCLUDE_FILES_CONTENT "/* */\n")
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2003-01-04 03:23:19 +03:00
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SET(MACRO_CHECK_INCLUDE_FILES_FLAGS ${CMAKE_REQUIRED_FLAGS})
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2003-01-02 02:00:49 +03:00
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STRING(ASCII 35 POUND)
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STRING(ASCII 40 41 PARENTS)
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FOREACH(FILE ${INCLUDE})
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SET(CHECK_INCLUDE_FILES_CONTENT
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"${CHECK_INCLUDE_FILES_CONTENT}${POUND}include <${FILE}>\n")
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ENDFOREACH(FILE)
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SET(CHECK_INCLUDE_FILES_CONTENT
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"${CHECK_INCLUDE_FILES_CONTENT}\n\nvoid main${PARENTS}{}\n")
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WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeTmp/CheckIncludeFiles.c
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"${CHECK_INCLUDE_FILES_CONTENT}")
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MESSAGE(STATUS "Looking for set of ${INCLUDE}")
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TRY_COMPILE(${VARIABLE}
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}/CMakeTmp/CheckIncludeFiles.c
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2003-01-04 03:23:19 +03:00
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CMAKE_FLAGS
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-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILES_FLAGS}
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2003-01-02 02:00:49 +03:00
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OUTPUT_VARIABLE OUTPUT)
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IF(${VARIABLE})
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MESSAGE(STATUS "Looking for set of ${INCLUDE} - found")
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SET(${VARIABLE} 1 CACHE INTERNAL "Have include ${INCLUDE}")
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ELSE(${VARIABLE})
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MESSAGE(STATUS "Looking for set of ${INCLUDE} - not found.")
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SET(${VARIABLE} "" CACHE INTERNAL "Have include ${INCLUDE}")
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WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeError.log
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"Determining if files ${INCLUDE} "
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"exist failed with the following output:\n"
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"${OUTPUT}\n" APPEND)
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ENDIF(${VARIABLE})
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ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$")
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ENDMACRO(CHECK_INCLUDE_FILES)
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