1 files changed, 45 insertions, 4 deletions
diff --git a/setuptools/command/build_ext.py b/setuptools/command/build_ext.py
index 4752a239..3678ac3e 100644
--- a/setuptools/command/build_ext.py
+++ b/setuptools/command/build_ext.py
@@ -1,11 +1,11 @@
-# Attempt to use Pyrex for building extensions, if available
-
+from distutils.command.build_ext import build_ext as _du_build_ext
 try:
+    # Attempt to use Pyrex for building extensions, if available
     from Pyrex.Distutils.build_ext import build_ext as _build_ext
 except ImportError:
-    from distutils.command.build_ext import build_ext as _build_ext
+    _build_ext = _du_build_ext
 
-import os
+import os, sys
 from distutils.file_util import copy_file
 
 class build_ext(_build_ext):
@@ -39,3 +39,44 @@ class build_ext(_build_ext):
                 dry_run=self.dry_run
             )
 
+    if _build_ext is not _du_build_ext:
+        # Workaround for problems using some Pyrex versions w/SWIG and/or 2.4
+        def swig_sources(self, sources, *otherargs):
+            # first do any Pyrex processing
+            sources = _build_ext.swig_sources(self, sources) or sources
+            # Then do any actual SWIG stuff on the remainder
+            return _du_build_ext.swig_sources(self, sources, *otherargs)
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