79 lines
2.6 KiB
CMake
79 lines
2.6 KiB
CMake
#.rst:
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# CheckFortranFunctionExists
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# --------------------------
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#
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# macro which checks if the Fortran function exists
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#
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# CHECK_FORTRAN_FUNCTION_EXISTS(FUNCTION VARIABLE)
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#
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# ::
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#
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# FUNCTION - the name of the Fortran function
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# VARIABLE - variable to store the result
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# Will be created as an internal cache variable.
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#
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#
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#
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# The following variables may be set before calling this macro to modify
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# the way the check is run:
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#
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# ::
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#
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# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
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#=============================================================================
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# Copyright 2007-2009 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 distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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macro(CHECK_FORTRAN_FUNCTION_EXISTS FUNCTION VARIABLE)
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if(NOT DEFINED ${VARIABLE})
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message(STATUS "Looking for Fortran ${FUNCTION}")
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if(CMAKE_REQUIRED_LIBRARIES)
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set(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES
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LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
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else()
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set(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES)
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endif()
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file(WRITE
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompiler.f
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"
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program TESTFortran
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external ${FUNCTION}
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call ${FUNCTION}()
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end program TESTFortran
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"
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)
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try_compile(${VARIABLE}
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompiler.f
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${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}
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OUTPUT_VARIABLE OUTPUT
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)
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# message(STATUS "${OUTPUT}")
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if(${VARIABLE})
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set(${VARIABLE} 1 CACHE INTERNAL "Have Fortran function ${FUNCTION}")
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message(STATUS "Looking for Fortran ${FUNCTION} - found")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Determining if the Fortran ${FUNCTION} exists passed with the following output:\n"
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"${OUTPUT}\n\n")
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else()
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message(STATUS "Looking for Fortran ${FUNCTION} - not found")
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set(${VARIABLE} "" CACHE INTERNAL "Have Fortran function ${FUNCTION}")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Determining if the Fortran ${FUNCTION} exists failed with the following output:\n"
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"${OUTPUT}\n\n")
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endif()
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endif()
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endmacro()
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