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Viewing changes to Modules/CheckIncludeFileCXX.cmake

  • Committer: Bazaar Package Importer
  • Author(s): A. Maitland Bottoms
  • Date: 2005-03-02 09:22:44 UTC
  • mfrom: (1.1.1 upstream)
  • Revision ID: james.westby@ubuntu.com-20050302092244-y6o9j8wr27vqcqvx
Tags: 2.0.5-1
New upstream release

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Modules/CheckIncludeFileCXX.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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# OPTIONAL - a third argument can be extra flags which are passed to the compiler
 
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#
 
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MACRO(CHECK_INCLUDE_FILE_CXX INCLUDE VARIABLE)
 
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  IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
 
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    MESSAGE(STATUS "Checking for CXX include file ${INCLUDE}")
 
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    SET(CHECK_INCLUDE_FILE_VAR ${INCLUDE})
 
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    CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CheckIncludeFile.cxx.in
 
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      ${CMAKE_BINARY_DIR}/CMakeTmp/CheckIncludeFile.cxx IMMEDIATE)
 
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    IF(${ARGC} EQUAL 3)
 
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      SET(CMAKE_CXX_FLAGS_SAVE ${CMAKE_CXX_FLAGS})
 
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      SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ARGV2}")
 
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    ENDIF(${ARGC} EQUAL 3)
 
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    TRY_COMPILE(${VARIABLE}
 
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      ${CMAKE_BINARY_DIR}
 
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      ${CMAKE_BINARY_DIR}/CMakeTmp/CheckIncludeFile.cxx
 
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      OUTPUT_VARIABLE OUTPUT)
 
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    IF(${ARGC} EQUAL 3)
 
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      SET(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS_SAVE})
 
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    ENDIF(${ARGC} EQUAL 3)
 
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    IF(${VARIABLE})
 
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      MESSAGE(STATUS "Checking for CXX include file ${INCLUDE} -- found")
 
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      SET(${VARIABLE} 1 CACHE INTERNAL "Have include ${INCLUDE}")
 
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      FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeOutput.log 
 
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        "Determining if the include file ${INCLUDE} "
 
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        "exists passed with the following output:\n"
 
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        "${OUTPUT}\n\n")
 
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    ELSE(${VARIABLE})
 
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      MESSAGE(STATUS "Checking for CXX include file ${INCLUDE} -- not found")
 
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      SET(${VARIABLE} "" CACHE INTERNAL "Have include ${INCLUDE}")
 
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      FILE(APPEND ${CMAKE_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\n")
 
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    ENDIF(${VARIABLE})
 
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  ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$")
 
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ENDMACRO(CHECK_INCLUDE_FILE_CXX)