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64 lines
2.2 KiB
64 lines
2.2 KiB
# 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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CheckFortranCompilerFlag
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------------------------
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.. versionadded:: 3.3
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Check once whether the Fortran compiler supports a given flag.
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.. command:: check_fortran_compiler_flag
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.. code-block:: cmake
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check_fortran_compiler_flag(<flag> <resultVar>)
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Check once that the ``<flag>`` is accepted by the compiler without a diagnostic.
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The result is stored in the internal cache variable specified by
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``<resultVar>``, with boolean ``true`` for success and boolean ``false`` for
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failure.
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``true`` indicates only that the compiler did not issue a diagnostic message
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when given the flag. Whether the flag has any effect is beyond the scope of
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this module.
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Internally, :command:`try_compile` is used to perform the check. If
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:variable:`CMAKE_TRY_COMPILE_TARGET_TYPE` is set to ``EXECUTABLE`` (default),
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the check compiles and links an executable program. If set to
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``STATIC_LIBRARY``, the check is compiled but not linked.
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See also :command:`check_compiler_flag` for a more general command syntax.
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The compile and link commands can be influenced by setting any of the
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following variables prior to calling ``check_fortran_compiler_flag()``. Unknown
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flags in these variables can case a false negative result.
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.. include:: /module/CMAKE_REQUIRED_FLAGS.txt
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.. include:: /module/CMAKE_REQUIRED_DEFINITIONS.txt
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.. include:: /module/CMAKE_REQUIRED_INCLUDES.txt
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.. include:: /module/CMAKE_REQUIRED_LINK_OPTIONS.txt
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.. include:: /module/CMAKE_REQUIRED_LIBRARIES.txt
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.. include:: /module/CMAKE_REQUIRED_LINK_DIRECTORIES.txt
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.. include:: /module/CMAKE_REQUIRED_QUIET.txt
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#]=======================================================================]
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include_guard(GLOBAL)
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include(Internal/CheckCompilerFlag)
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macro (CHECK_FORTRAN_COMPILER_FLAG _FLAG _RESULT)
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cmake_check_compiler_flag(Fortran "${_FLAG}" ${_RESULT})
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endmacro ()
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# FIXME(#24994): The following module is included only for compatibility
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# with projects that accidentally relied on it with CMake 3.26 and below.
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include(CheckFortranSourceCompiles)
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