Fixed some problems building extensions when Pyrex was installed, especially

with Python 2.4 and/or packages using SWIG.

--HG--
branch : setuptools
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/trunk/setuptools%4041384

EasyInstall.txt

@@ -874,6 +874,9 @@ Known Issues
  * Fixed not fully removing temporary directories on Windows, if a Subversion
    checkout left read-only files behind
 
+ * Fixed some problems building extensions when Pyrex was installed, especially
+   with Python 2.4 and/or packages using SWIG.
+
 0.6a7
  * Fixed not being able to install Windows script wrappers using Python 2.3
 

setuptools.txt

@@ -1873,6 +1873,10 @@ XXX
 Release Notes/Change History
 ----------------------------
 
+0.6a8
+ * Fixed some problems building extensions when Pyrex was installed, especially
+   with Python 2.4 and/or packages using SWIG.
+
 0.6a5
  * Fixed missing gui/cli .exe files in distribution.  Fixed bugs in tests.
  

setuptools/command/build_ext.py

-# 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):
@@ -38,4 +38,45 @@ class build_ext(_build_ext):
                 src_filename, dest_filename, verbose=self.verbose,
                 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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