73 lines
3.3 KiB
CMake
73 lines
3.3 KiB
CMake
# - Check if the files can be included
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#
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# CHECK_INCLUDE_FILES(INCLUDE VARIABLE)
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#
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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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# The following variables may be set before calling this macro to
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# modify the way the check is run:
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#
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# CMAKE_REQUIRED_FLAGS = string of compile command line flags
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# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
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# CMAKE_REQUIRED_INCLUDES = list of include directories
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#=============================================================================
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# Copyright 2003-2009 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distributed this file outside of CMake, substitute the full
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# License text for the above reference.)
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MACRO(CHECK_INCLUDE_FILES INCLUDE VARIABLE)
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IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
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SET(CMAKE_CONFIGURABLE_FILE_CONTENT "/* */\n")
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IF(CMAKE_REQUIRED_INCLUDES)
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SET(CHECK_INCLUDE_FILES_INCLUDE_DIRS "-DINCLUDE_DIRECTORIES=${CMAKE_REQUIRED_INCLUDES}")
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ELSE(CMAKE_REQUIRED_INCLUDES)
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SET(CHECK_INCLUDE_FILES_INCLUDE_DIRS)
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ENDIF(CMAKE_REQUIRED_INCLUDES)
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SET(CHECK_INCLUDE_FILES_CONTENT "/* */\n")
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SET(MACRO_CHECK_INCLUDE_FILES_FLAGS ${CMAKE_REQUIRED_FLAGS})
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FOREACH(FILE ${INCLUDE})
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SET(CMAKE_CONFIGURABLE_FILE_CONTENT
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"${CMAKE_CONFIGURABLE_FILE_CONTENT}#include <${FILE}>\n")
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ENDFOREACH(FILE)
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SET(CMAKE_CONFIGURABLE_FILE_CONTENT
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"${CMAKE_CONFIGURABLE_FILE_CONTENT}\n\nint main(){return 0;}\n")
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CONFIGURE_FILE("${CMAKE_ROOT}/Modules/CMakeConfigurableFile.in"
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"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckIncludeFiles.c" @ONLY IMMEDIATE)
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MESSAGE(STATUS "Looking for include files ${VARIABLE}")
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TRY_COMPILE(${VARIABLE}
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckIncludeFiles.c
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COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
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CMAKE_FLAGS
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-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILES_FLAGS}
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"${CHECK_INCLUDE_FILES_INCLUDE_DIRS}"
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OUTPUT_VARIABLE OUTPUT)
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IF(${VARIABLE})
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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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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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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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ELSE(${VARIABLE})
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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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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/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}\nSource:\n${CMAKE_CONFIGURABLE_FILE_CONTENT}\n")
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ENDIF(${VARIABLE})
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ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$")
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ENDMACRO(CHECK_INCLUDE_FILES)
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