# - Check if the Fortran function exists. # CHECK_FORTRAN_FUNCTION_EXISTS(FUNCTION VARIABLE) # - macro which checks if the Fortran function exists # FUNCTION - the name of the Fortran function # VARIABLE - variable to store the result # # The following variables may be set before calling this macro to # modify the way the check is run: # # CMAKE_REQUIRED_LIBRARIES = list of libraries to link #============================================================================= # Copyright 2007-2009 Kitware, Inc. # # Distributed under the OSI-approved BSD License (the "License"); # see accompanying file Copyright.txt for details. # # This software is distributed WITHOUT ANY WARRANTY; without even the # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # See the License for more information. #============================================================================= # (To distribute this file outside of CMake, substitute the full # License text for the above reference.) macro(CHECK_FORTRAN_FUNCTION_EXISTS FUNCTION VARIABLE) if(NOT DEFINED ${VARIABLE}) message(STATUS "Looking for Fortran ${FUNCTION}") if(CMAKE_REQUIRED_LIBRARIES) set(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES}) else() set(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES) endif() file(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompiler.f " program TESTFortran external ${FUNCTION} call ${FUNCTION}() end program TESTFortran " ) try_compile(${VARIABLE} ${CMAKE_BINARY_DIR} ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompiler.f ${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES} OUTPUT_VARIABLE OUTPUT ) # message(STATUS "${OUTPUT}") if(${VARIABLE}) set(${VARIABLE} 1 CACHE INTERNAL "Have Fortran function ${FUNCTION}") message(STATUS "Looking for Fortran ${FUNCTION} - found") file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log "Determining if the Fortran ${FUNCTION} exists passed with the following output:\n" "${OUTPUT}\n\n") else() message(STATUS "Looking for Fortran ${FUNCTION} - not found") set(${VARIABLE} "" CACHE INTERNAL "Have Fortran function ${FUNCTION}") file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log "Determining if the Fortran ${FUNCTION} exists failed with the following output:\n" "${OUTPUT}\n\n") endif() endif() endmacro()