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# UseSWIG

Defines the following macros for use with SWIG:

    SWIG_ADD_MODULE(name language [ files ])
      - Define swig module with given name and specified language
    SWIG_LINK_LIBRARIES(name [ libraries ])
      - Link libraries to swig module

Source files properties on module files can be set before the invocation of the SWIG_ADD_MODULE macro to specify special behavior of SWIG.

The source file property CPLUSPLUS calls SWIG in c++ mode, e.g.:

    set_property(SOURCE mymod.i PROPERTY CPLUSPLUS ON)
    swig_add_module(mymod python mymod.i)

The source file property SWIG_FLAGS adds custom flags to the SWIG executable.

The source-file property SWIG_MODULE_NAME have to be provided to specify the actual import name of the module in the target language if it cannot be scanned automatically from source or different from the module file basename.:

    set_property(SOURCE mymod.i PROPERTY SWIG_MODULE_NAME mymod_realname)

To get the name of the swig module target library, use: ${SWIG_MODULE_${name}_REAL_NAME}.

Also some variables can be set to specify special behavior of SWIG.

CMAKE_SWIG_FLAGS can be used to add special flags to all swig calls.

Another special variable is CMAKE_SWIG_OUTDIR, it allows one to specify where to write all the swig generated module (swig -outdir option)

The name-specific variable SWIG_MODULE_<name>_EXTRA_DEPS may be used to specify extra dependencies for the generated modules.

If the source file generated by swig need some special flag you can use:

    set_source_files_properties( ${swig_generated_file_fullname}
                                 PROPERTIES COMPILE_FLAGS "-bla")

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