--- bdist_rpm.py	2004-09-15 17:48:09.000000000 +1000
+++ /usr/lib/python2.3/distutils/command/bdist_rpm.py	2004-09-16 10:50:49.000000000 +1000
@@ -123,6 +123,9 @@
         # Allow a packager to explicitly force an architecture
         ('force-arch=', None,
          "Force an architecture onto the RPM build process"),
+
+        ('source-urlbase=', None,
+         "Specify the base of the source URL"),
        ]
 
     boolean_options = ['keep-temp', 'use-rpm-opt-flags', 'rpm3-mode']
@@ -175,6 +178,7 @@
 
         self.force_arch = None
 
+        self.source_urlbase = ''
     # initialize_options()
 
 
@@ -381,13 +385,14 @@
             'Version: %{version}',
             'Release: %{release}',])
 
+        source_name='%{name}-%{version}'
         # XXX yuck! this filename is available from the "sdist" command,
         # but only after it has run: and we create the spec file before
         # running "sdist", in case of --spec-only.
+        source_ext='tar.gz'
         if self.use_bzip2:
-            spec_file.append('Source0: %{name}-%{version}.tar.bz2')
-        else:
-            spec_file.append('Source0: %{name}-%{version}.tar.gz')
+            source_ext='tar.bz2'
+        spec_file.append('Source0: %s/%s.%s' % (self.source_urlbase, source_name, source_ext))
 
         spec_file.extend([
             'License: ' + self.distribution.get_license(),