2 patches for bzr.dev/cython.dev

[Denys Duchier]

I am running bzr.dev and cython.dev.
cython dev has version "0.15+" (notice the plus) which makes bzr's
setup.py choke.  here is a possible fix:

----8<--------------------------------------------------------------
=== modified file 'setup.py'
--- setup.py	2011-08-25 11:02:37 +0000
+++ setup.py	2011-08-30 14:44:42 +0000
@@ -202,7 +202,9 @@
     from distutils.command.build_ext import build_ext
 else:
     have_pyrex = True
-    pyrex_version_info = tuple(map(int, pyrex_version.split('.')))
+    import re
+    _version = re.match("^[0-9.]+", pyrex_version).group(0)
+    pyrex_version_info = tuple(map(int, _version.split('.')))
 
 
 class build_ext_if_possible(build_ext):

----8<--------------------------------------------------------------

after that, "bzr status" bombs in the bzr.dev directory because of an
uninitialized variable "changed".  here is a possible fix:

----8<--------------------------------------------------------------
=== modified file 'bzrlib/_dirstate_helpers_pyx.pyx'
--- bzrlib/_dirstate_helpers_pyx.pyx	2011-04-22 14:12:22 +0000
+++ bzrlib/_dirstate_helpers_pyx.pyx	2011-08-30 14:43:05 +0000
@@ -1793,6 +1793,7 @@
                 advance_entry = -1
                 advance_path = -1
                 result = None
+                changed = None
                 path_handled = 0
                 if current_entry is None:
                     # unversioned -  the check for path_handled when the path

----8<--------------------------------------------------------------

Cheers,

--Denys