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Merge pull request #20 from swig-fortran/useswig-new
Backport upcoming FindSWIG/UseSWIG
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| /build/ | ||
| /build-*/ | ||
| /install/ | ||
| /install-*/ | ||
| # Prerequisites | ||
| *.d | ||
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| # Distributed under the OSI-approved BSD 3-Clause License. See accompanying | ||
| # file Copyright.txt or https://cmake.org/licensing for details. | ||
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| #[=======================================================================[.rst: | ||
| FindSWIG | ||
| -------- | ||
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| Find the Simplified Wrapper and Interface Generator (SWIG_) executable. | ||
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| This module finds an installed SWIG and determines its version. If a | ||
| ``COMPONENTS`` or ``OPTIONAL_COMPONENTS`` argument is given to ``find_package``, | ||
| it will also determine supported target languages. The module sents the | ||
| following variables: | ||
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| ``SWIG_FOUND`` | ||
| Whether SWIG and any required components were found on the system. | ||
| ``SWIG_EXECUTABLE`` | ||
| Path to the SWIG executable. | ||
| ``SWIG_DIR`` | ||
| Path to the installed SWIG ``Lib`` directory (result of ``swig -swiglib``). | ||
| ``SWIG_VERSION`` | ||
| SWIG executable version (result of ``swig -version``). | ||
| ``SWIG_<lang>_FOUND`` | ||
| If ``COMPONENTS`` or ``OPTIONAL_COMPONENTS`` are requested, each available | ||
| target language ``<lang>`` (lowercase) will be set to TRUE. | ||
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| Any ``COMPONENTS`` given to ``find_package`` should be the names of supported | ||
| target languages as provided to the LANGUAGE argument of ``swig_add_library``, | ||
| such as ``python`` or ``perl5``. Language names *must* be lowercase. | ||
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| All information is collected from the ``SWIG_EXECUTABLE``, so the version | ||
| to be found can be changed from the command line by means of setting | ||
| ``SWIG_EXECUTABLE``. | ||
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| Example usage requiring SWIG 4.0 or higher and Python language support, with | ||
| optional Fortran support: | ||
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| .. code-block:: cmake | ||
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| find_package(SWIG 4.0 COMPONENTS python OPTIONAL_COMPONENTS fortran) | ||
| if(SWIG_FOUND) | ||
| message("SWIG found: ${SWIG_EXECUTABLE}") | ||
| if(NOT SWIG_fortran_FOUND) | ||
| message(WARNING "SWIG Fortran bindings cannot be generated") | ||
| endif() | ||
| endif() | ||
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| .. _`SWIG`: http://swig.org | ||
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| #]=======================================================================] | ||
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| find_program(SWIG_EXECUTABLE NAMES swig4.0 swig3.0 swig2.0 swig) | ||
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| if(SWIG_EXECUTABLE) | ||
| execute_process(COMMAND ${SWIG_EXECUTABLE} -swiglib | ||
| OUTPUT_VARIABLE SWIG_swiglib_output | ||
| ERROR_VARIABLE SWIG_swiglib_error | ||
| RESULT_VARIABLE SWIG_swiglib_result) | ||
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| if(SWIG_swiglib_result) | ||
| if(SWIG_FIND_REQUIRED) | ||
| message(SEND_ERROR "Command \"${SWIG_EXECUTABLE} -swiglib\" failed with output:\n${SWIG_swiglib_error}") | ||
| else() | ||
| message(STATUS "Command \"${SWIG_EXECUTABLE} -swiglib\" failed with output:\n${SWIG_swiglib_error}") | ||
| endif() | ||
| else() | ||
| string(REGEX REPLACE "[\n\r]+" ";" SWIG_swiglib_output ${SWIG_swiglib_output}) | ||
| find_path(SWIG_DIR swig.swg PATHS ${SWIG_swiglib_output} NO_CMAKE_FIND_ROOT_PATH) | ||
| if(SWIG_DIR) | ||
| set(SWIG_USE_FILE ${CMAKE_CURRENT_LIST_DIR}/UseSWIG.cmake) | ||
| execute_process(COMMAND ${SWIG_EXECUTABLE} -version | ||
| OUTPUT_VARIABLE SWIG_version_output | ||
| ERROR_VARIABLE SWIG_version_output | ||
| RESULT_VARIABLE SWIG_version_result) | ||
| if(SWIG_version_result) | ||
| message(SEND_ERROR "Command \"${SWIG_EXECUTABLE} -version\" failed with output:\n${SWIG_version_output}") | ||
| else() | ||
| string(REGEX REPLACE ".*SWIG Version[^0-9.]*\([0-9.]+\).*" "\\1" | ||
| SWIG_version_output "${SWIG_version_output}") | ||
| set(SWIG_VERSION ${SWIG_version_output} CACHE STRING "Swig version" FORCE) | ||
| endif() | ||
| endif() | ||
| endif() | ||
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| if(SWIG_FIND_COMPONENTS) | ||
| execute_process(COMMAND ${SWIG_EXECUTABLE} -help | ||
| OUTPUT_VARIABLE SWIG_swighelp_output | ||
| ERROR_VARIABLE SWIG_swighelp_error | ||
| RESULT_VARIABLE SWIG_swighelp_result) | ||
| if(SWIG_swighelp_result) | ||
| message(SEND_ERROR "Command \"${SWIG_EXECUTABLE} -help\" failed with output:\n${SWIG_swiglib_error}") | ||
| else() | ||
| string(REPLACE "\n" ";" SWIG_swighelp_output "${SWIG_swighelp_output}") | ||
| foreach(SWIG_line IN LISTS SWIG_swighelp_output) | ||
| if(SWIG_line MATCHES "-([A-Za-z0-9_]+) +- *Generate.*wrappers") | ||
| set(SWIG_${CMAKE_MATCH_1}_FOUND TRUE) | ||
| endif() | ||
| endforeach() | ||
| endif() | ||
| endif() | ||
| endif() | ||
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| include(FindPackageHandleStandardArgs) | ||
| find_package_handle_standard_args( | ||
| SWIG HANDLE_COMPONENTS | ||
| REQUIRED_VARS SWIG_EXECUTABLE SWIG_DIR | ||
| VERSION_VAR SWIG_VERSION) | ||
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| mark_as_advanced(SWIG_DIR SWIG_VERSION SWIG_EXECUTABLE) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| # Distributed under the OSI-approved BSD 3-Clause License. See accompanying | ||
| # file Copyright.txt or https://cmake.org/licensing for details. | ||
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| if (ACTION STREQUAL "CLEAN") | ||
| # Collect current list of generated files | ||
| file (GLOB files LIST_DIRECTORIES FALSE RELATIVE "${SUPPORT_FILES_WORKING_DIRECTORY}" "${SUPPORT_FILES_WORKING_DIRECTORY}/*") | ||
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| if (files) | ||
| # clean-up the output directory | ||
| ## compute full paths | ||
| list (TRANSFORM files PREPEND "${SUPPORT_FILES_OUTPUT_DIRECTORY}/") | ||
| ## remove generated files from the output directory | ||
| file (REMOVE ${files}) | ||
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| # clean-up working directory | ||
| file (REMOVE_RECURSE "${SUPPORT_FILES_WORKING_DIRECTORY}") | ||
| endif() | ||
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| file (MAKE_DIRECTORY "${SUPPORT_FILES_WORKING_DIRECTORY}") | ||
| endif() | ||
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| if (ACTION STREQUAL "COPY") | ||
| # Collect current list of generated files | ||
| file (GLOB files LIST_DIRECTORIES FALSE "${SUPPORT_FILES_WORKING_DIRECTORY}/*") | ||
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| if (files) | ||
| # copy files to the output directory | ||
| file (COPY ${files} DESTINATION "${SUPPORT_FILES_OUTPUT_DIRECTORY}") | ||
| endif() | ||
| endif() |
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