Be slightly more forgiving about the nature of SVN_REV; bob will be

reliable at defining it, and it's useful to be able to pass `1234M'-
type revisions in for testing purposes.

[originally from svn r7221]

windows/version.rc2

@@ -45,7 +45,7 @@
 
 /* Make SVN_REV mandatory for snapshots, to avoid issuing binary
  * version numbers that look like full releases. */
-#if (!defined SVN_REV) || (SVN_REV == 0)
+#ifndef SVN_REV
 #error SVN_REV not defined/nonzero for snapshot build
 #endif