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-rw-r--r--Modules/UseSWIG.cmake26
1 files changed, 24 insertions, 2 deletions
diff --git a/Modules/UseSWIG.cmake b/Modules/UseSWIG.cmake
index a3d6d9e..18ea55c 100644
--- a/Modules/UseSWIG.cmake
+++ b/Modules/UseSWIG.cmake
@@ -75,7 +75,8 @@ Defines the following command for use with ``SWIG``:
``SOURCES``
List of sources for the library. Files with extension ``.i`` will be
identified as sources for the ``SWIG`` tool. Other files will be handled in
- the standard way.
+ the standard way. This behavior can be overriden by specifying the variable
+ ``SWIG_SOURCE_FILE_EXTENSIONS``.
.. note::
@@ -222,6 +223,15 @@ as well as ``SWIG``:
``SWIG_MODULE_<name>_EXTRA_DEPS``
Specify extra dependencies for the generated module for ``<name>``.
+
+``SWIG_SOURCE_FILE_EXTENSIONS``
+ Specify a list of source file extensions to override the default
+ behavior of considering only ``.i`` files as sources for the ``SWIG``
+ tool. For example:
+
+ .. code-block:: cmake
+
+ set(SWIG_SOURCE_FILE_EXTENSIONS ".i" ".swg")
#]=======================================================================]
cmake_policy(GET CMP0078 target_name_policy)
@@ -659,8 +669,20 @@ function(SWIG_ADD_LIBRARY name)
set(CMAKE_SWIG_OUTDIR "${outputdir}")
set(SWIG_OUTFILE_DIR "${outfiledir}")
+ # See if the user has specified source extensions for swig files?
+ if (NOT DEFINED SWIG_SOURCE_FILE_EXTENSIONS)
+ # Assume the default (*.i) file extension for Swig source files
+ set(SWIG_SOURCE_FILE_EXTENSIONS ".i")
+ endif()
+
+ # Generate a regex out of file extensions.
+ string(REGEX REPLACE "([$^.*+?|()-])" "\\\\\\1" swig_source_ext_regex "${SWIG_SOURCE_FILE_EXTENSIONS}")
+ list (JOIN swig_source_ext_regex "|" swig_source_ext_regex)
+ string (PREPEND swig_source_ext_regex "(")
+ string (APPEND swig_source_ext_regex ")$")
+
set(swig_dot_i_sources ${_SAM_SOURCES})
- list(FILTER swig_dot_i_sources INCLUDE REGEX "\\.i$")
+ list(FILTER swig_dot_i_sources INCLUDE REGEX ${swig_source_ext_regex})
if (NOT swig_dot_i_sources)
message(FATAL_ERROR "SWIG_ADD_LIBRARY: no SWIG interface files specified")
endif()