CMakeTestFortranCompiler.cmake 3.31 KB
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# This file is used by EnableLanguage in cmGlobalGenerator to
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# determine that that selected Fortran compiler can actually compile
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# and link the most basic of programs.   If not, a fatal error
# is set and cmake stops processing commands and will not generate
# any makefiles or projects.
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IF(NOT CMAKE_Fortran_COMPILER_WORKS)
  MESSAGE(STATUS "Check for working Fortran compiler: ${CMAKE_Fortran_COMPILER}")
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  FILE(WRITE ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/testFortranCompiler.f "
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        PROGRAM TESTFortran
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        PRINT *, 'Hello'
        END
  ")
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  TRY_COMPILE(CMAKE_Fortran_COMPILER_WORKS ${CMAKE_BINARY_DIR} 
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    ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/testFortranCompiler.f
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    OUTPUT_VARIABLE OUTPUT)
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  SET(FORTRAN_TEST_WAS_RUN 1)
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ENDIF(NOT CMAKE_Fortran_COMPILER_WORKS)
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IF(NOT CMAKE_Fortran_COMPILER_WORKS)
  MESSAGE(STATUS "Check for working Fortran compiler: ${CMAKE_Fortran_COMPILER} -- broken")
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  FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
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    "Determining if the Fortran compiler works failed with "
    "the following output:\n${OUTPUT}\n\n")
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  MESSAGE(FATAL_ERROR "The Fortran compiler \"${CMAKE_Fortran_COMPILER}\" "
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    "is not able to compile a simple test program.\nIt fails "
    "with the following output:\n ${OUTPUT}\n\n"
    "CMake will not be able to correctly generate this project.")
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ELSE(NOT CMAKE_Fortran_COMPILER_WORKS)
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  IF(FORTRAN_TEST_WAS_RUN)
    MESSAGE(STATUS "Check for working Fortran compiler: ${CMAKE_Fortran_COMPILER} -- works")
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    FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeOutput.log
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      "Determining if the Fortran compiler works passed with "
      "the following output:\n${OUTPUT}\n\n")
  ENDIF(FORTRAN_TEST_WAS_RUN)
  SET(CMAKE_Fortran_COMPILER_WORKS 1 CACHE INTERNAL "")
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ENDIF(NOT CMAKE_Fortran_COMPILER_WORKS)
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IF(CMAKE_Fortran_COMPILER_WORKS)
  # Test for Fortran 90 support by using an f90-specific construct.
  IF(DEFINED CMAKE_Fortran_COMPILER_SUPPORTS_F90)
  ELSE(DEFINED CMAKE_Fortran_COMPILER_SUPPORTS_F90)
    MESSAGE(STATUS "Checking whether ${CMAKE_Fortran_COMPILER} supports Fortran 90")
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    FILE(WRITE ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/testFortranCompilerF90.f90 "
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      PROGRAM TESTFortran90
      stop = 1 ; do while ( stop .eq. 0 ) ; end do
      END PROGRAM TESTFortran90
  ")
    TRY_COMPILE(CMAKE_Fortran_COMPILER_SUPPORTS_F90 ${CMAKE_BINARY_DIR}
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      ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/testFortranCompilerF90.f90
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      OUTPUT_VARIABLE OUTPUT)
    IF(CMAKE_Fortran_COMPILER_SUPPORTS_F90)
      MESSAGE(STATUS "Checking whether ${CMAKE_Fortran_COMPILER} supports Fortran 90 -- yes")
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      FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeOutput.log
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        "Determining if the Fortran compiler supports Fortran 90 passed with "
        "the following output:\n${OUTPUT}\n\n")
      SET(CMAKE_Fortran_COMPILER_SUPPORTS_F90 1 CACHE INTERNAL "")
    ELSE(CMAKE_Fortran_COMPILER_SUPPORTS_F90)
      MESSAGE(STATUS "Checking whether ${CMAKE_Fortran_COMPILER} supports Fortran 90 -- no")
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      FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
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        "Determining if the Fortran compiler supports Fortran 90 failed with "
        "the following output:\n${OUTPUT}\n\n")
      SET(CMAKE_Fortran_COMPILER_SUPPORTS_F90 0 CACHE INTERNAL "")
    ENDIF(CMAKE_Fortran_COMPILER_SUPPORTS_F90)
  ENDIF(DEFINED CMAKE_Fortran_COMPILER_SUPPORTS_F90)
ENDIF(CMAKE_Fortran_COMPILER_WORKS)