MacOSX: fix rather dumb buglet that made it impossible to create extensions on
OSX 10.3 when using a binary distribution build on 10.4.
diff --git a/Lib/distutils/sysconfig.py b/Lib/distutils/sysconfig.py
index 2ba3c4d..c3b1e4e 100644
--- a/Lib/distutils/sysconfig.py
+++ b/Lib/distutils/sysconfig.py
@@ -512,7 +512,7 @@
                 for key in ('LDFLAGS', 'BASECFLAGS'):
                     flags = _config_vars[key]
                     flags = re.sub('-arch\s+\w+\s', ' ', flags)
-                    flags = re.sub('-isysroot [^ \t]* ', ' ', flags)
+                    flags = re.sub('-isysroot [^ \t]*', ' ', flags)
                     _config_vars[key] = flags
 
     if args: