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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2005-11-02 21:51:59 +03:00
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# If CMAKE_REQUIRED_FLAGS is set then those flags will be passed into the
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# compile of the program
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2003-01-02 02:00:49 +03:00
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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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FOREACH(FILE ${INCLUDE})
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SET(CHECK_INCLUDE_FILES_CONTENT
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2003-07-11 22:14:03 +04:00
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"${CHECK_INCLUDE_FILES_CONTENT}#include <${FILE}>\n")
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2003-01-02 02:00:49 +03:00
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ENDFOREACH(FILE)
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SET(CHECK_INCLUDE_FILES_CONTENT
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2003-07-11 22:14:03 +04:00
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"${CHECK_INCLUDE_FILES_CONTENT}\n\nint main(){return 0;}\n")
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FILE(WRITE ${CMAKE_BINARY_DIR}/CMakeTmp/CheckIncludeFiles.c
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"${CHECK_INCLUDE_FILES_CONTENT}")
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2003-01-21 22:01:41 +03:00
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MESSAGE(STATUS "Looking for include files ${VARIABLE}")
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2003-01-02 02:00:49 +03:00
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TRY_COMPILE(${VARIABLE}
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2003-07-11 22:14:03 +04:00
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}/CMakeTmp/CheckIncludeFiles.c
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CMAKE_FLAGS
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-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILES_FLAGS}
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OUTPUT_VARIABLE OUTPUT)
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2003-01-02 02:00:49 +03:00
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IF(${VARIABLE})
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2003-01-21 22:01:41 +03:00
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MESSAGE(STATUS "Looking for include files ${VARIABLE} - found")
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SET(${VARIABLE} 1 CACHE INTERNAL "Have include ${VARIABLE}")
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2005-07-29 17:19:25 +04:00
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FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeOutput.log
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2003-08-08 19:59:07 +04:00
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"Determining if files ${INCLUDE} "
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"exist passed with the following output:\n"
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"${OUTPUT}\n\n")
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2003-01-02 02:00:49 +03:00
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ELSE(${VARIABLE})
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2003-01-21 22:01:41 +03:00
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MESSAGE(STATUS "Looking for include files ${VARIABLE} - not found.")
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SET(${VARIABLE} "" CACHE INTERNAL "Have includes ${VARIABLE}")
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2005-07-29 17:19:25 +04:00
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FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
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2003-01-02 02:00:49 +03:00
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"Determining if files ${INCLUDE} "
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"exist failed with the following output:\n"
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2004-10-05 16:32:08 +04:00
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"${OUTPUT}\nSource:\n${CHECK_INCLUDE_FILES_CONTENT}\n")
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2003-01-02 02:00:49 +03:00
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ENDIF(${VARIABLE})
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ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$")
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ENDMACRO(CHECK_INCLUDE_FILES)
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