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c5980ad868
This updates the following modules: - CheckCSourceRuns - CheckCXXSourceRuns - CheckFortranSourceRuns - CheckOBJCSourceRuns - CheckOBJCXXSourceRuns - CheckSourceRuns Changes: - Added intro code blocks showing how to include these modules. - Used word "command" instead of "macro". - Added "Commands" sections to have a clearer overview of the modules at first encounter. - Reworded commands descriptions and arguments a bit. - Added a rubric title for variables that affect the checks. - Added "Examples" sections. - Added "See Also" sections. - Added few more examples in the CheckSourceRuns module to show how to use this module with different languages, `CMAKE_REQUIRED_*` variables, and mentioned bracket argument syntax a bit.
100 lines
2.9 KiB
CMake
100 lines
2.9 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file LICENSE.rst or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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CheckFortranSourceRuns
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----------------------
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.. versionadded:: 3.14
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This module provides a command to check whether a Fortran source can be built
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and run.
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Load this module in a CMake project with:
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.. code-block:: cmake
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include(CheckFortranSourceRuns)
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Commands
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^^^^^^^^
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This module provides the following command:
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.. command:: check_fortran_source_runs
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Checks once whether the given Fortran source compiles and links into an
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executable that can subsequently be run.
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.. code-block:: cmake
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check_fortran_source_runs(<code> <variable> [SRC_EXT <extension>])
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The Fortran source supplied in ``<code>`` must contain a Fortran ``program``
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unit. The result of the check is stored in the internal cache variable
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specified by ``<variable>``. If the code builds and runs with exit code
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``0``, success is indicated by a boolean true value. Failure to build or
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run is indicated by a boolean false value, such as an empty string or an
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error message.
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The options are:
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``SRC_EXT <extension>``
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By default, the internal test source file used for the check will be
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given a ``.F90`` file extension. This option can be used to change the
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extension to ``.<extension>`` instead.
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.. rubric:: Variables Affecting the Check
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The following variables may be set before calling this command to modify
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the way the check is run:
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.. include:: /module/include/CMAKE_REQUIRED_FLAGS.rst
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.. include:: /module/include/CMAKE_REQUIRED_DEFINITIONS.rst
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.. include:: /module/include/CMAKE_REQUIRED_INCLUDES.rst
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.. include:: /module/include/CMAKE_REQUIRED_LINK_OPTIONS.rst
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.. include:: /module/include/CMAKE_REQUIRED_LIBRARIES.rst
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.. include:: /module/include/CMAKE_REQUIRED_LINK_DIRECTORIES.rst
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.. include:: /module/include/CMAKE_REQUIRED_QUIET.rst
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Examples
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^^^^^^^^
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The following example shows how to use this module to check whether a Fortran
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source code runs and store the result of the check in an internal cache
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variable ``HAVE_COARRAY``:
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.. code-block:: cmake
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include(CheckFortranSourceRuns)
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check_fortran_source_runs([[
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program test
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real :: x[*]
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call co_sum(x)
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end program
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]] HAVE_COARRAY)
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See Also
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^^^^^^^^
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* The :module:`CheckSourceRuns` module for a more general command syntax.
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* The :module:`CheckSourceCompiles` module to check whether a source code
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can be built.
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#]=======================================================================]
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include_guard(GLOBAL)
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include(Internal/CheckSourceRuns)
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macro(CHECK_Fortran_SOURCE_RUNS SOURCE VAR)
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# Pass the SRC_EXT we used by default historically.
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# A user-provided SRC_EXT argument in ARGN will override ours.
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cmake_check_source_runs(Fortran "${SOURCE}" ${VAR} SRC_EXT "F90" ${ARGN})
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endmacro()
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