--- setup.py.original	2012-11-22 17:01:30.000000000 -0800
+++ setup.py	2012-11-22 17:01:47.000000000 -0800
@@ -236,7 +236,9 @@ class PyBuildExt(build_ext):
 
         build_ext.build_extensions(self)
 
-        longest = max([len(e.name) for e in self.extensions])
+        longest = 0
+        if self.extensions:
+            longest = max([len(e.name) for e in self.extensions])
         if self.failed:
             longest = max(longest, max([len(name) for name in self.failed]))