#
#
# patch "viewmtn.py"
#  from [7f71265800749c5f6067bdeb075856afad4212d8]
#    to [032885cf22c6d9c684bc1ce0fe90f60f3f97dd79]
#
============================================================
--- viewmtn.py	7f71265800749c5f6067bdeb075856afad4212d8
+++ viewmtn.py	032885cf22c6d9c684bc1ce0fe90f60f3f97dd79
@@ -174,9 +174,12 @@ class DiffLink(Link):
         else:
             mode = "diff"
         self.relative_uri = 'revision/%s/' % (mode) + diff.from_rev + '/with/' + diff.to_rev
-        # TODO: figure out a linking scheme for diffs of multiple files.
         if isinstance(diff.fname, list):
-            fname = diff.fname[0]
+            # TODO: figure out a linking scheme for diffs of multiple files.
+            if len(diff.fname) > 0:
+                fname = diff.fname[0]
+            else:
+                fname = None
         else:
             fname = diff.fname
         if fname is not None: