mirror of
https://github.com/Kitware/CMake.git
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2edf0fc6d7
Modify most of the modules that ship with CMake to use the new
try_compile / try_run signatures added by commit aa9220d3a0
(try_compile: Add keyword-dispatched signature, 2022-09-02). This
improves debugging by each invocation using its own directory so that
the results of multiple invocations can be retained.
This does not cover any invocations which provide an entire project, as
that flavor of try_compile has not yet been updated.
91 lines
3.1 KiB
CMake
91 lines
3.1 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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CheckFortranFunctionExists
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--------------------------
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Check if a Fortran function exists.
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.. command:: CHECK_FORTRAN_FUNCTION_EXISTS
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.. code-block:: cmake
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CHECK_FORTRAN_FUNCTION_EXISTS(<function> <result>)
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where
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``<function>``
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the name of the Fortran function
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``<result>``
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variable to store the result; will be created as an internal cache variable.
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.. note::
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This command does not detect functions in Fortran modules. In general it is
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recommended to use :module:`CheckSourceCompiles` instead to determine if a
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Fortran function or subroutine is available.
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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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``CMAKE_REQUIRED_LINK_OPTIONS``
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.. versionadded:: 3.14
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A :ref:`;-list <CMake Language Lists>` of options to add to the link
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command (see :command:`try_compile` for further details).
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``CMAKE_REQUIRED_LIBRARIES``
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A :ref:`;-list <CMake Language Lists>` of libraries to add to the link
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command. These can be the name of system libraries or they can be
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:ref:`Imported Targets <Imported Targets>` (see :command:`try_compile` for
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further details).
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#]=======================================================================]
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include_guard(GLOBAL)
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macro(CHECK_FORTRAN_FUNCTION_EXISTS FUNCTION VARIABLE)
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if(NOT DEFINED ${VARIABLE})
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message(CHECK_START "Looking for Fortran ${FUNCTION}")
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if(CMAKE_REQUIRED_LINK_OPTIONS)
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set(CHECK_FUNCTION_EXISTS_ADD_LINK_OPTIONS
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LINK_OPTIONS ${CMAKE_REQUIRED_LINK_OPTIONS})
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else()
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set(CHECK_FUNCTION_EXISTS_ADD_LINK_OPTIONS)
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endif()
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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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SOURCES ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompiler.f
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${CHECK_FUNCTION_EXISTS_ADD_LINK_OPTIONS}
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${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}
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OUTPUT_VARIABLE OUTPUT
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)
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if(${VARIABLE})
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set(${VARIABLE} 1 CACHE INTERNAL "Have Fortran function ${FUNCTION}")
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message(CHECK_PASS "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(CHECK_FAIL "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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