- Of course, it only makes sense to run this test if os.symlink exists.

  Also, add an entry to CHANGES.txt

CHANGES.txt

@@ -4,6 +4,12 @@ Status
 Change History
 **************
 
+1.1.2 (Unreleased)
+==================
+
+- Fixed a bug that would cause buildout to break while computing a
+  directory hash if it found a broken symlink (Launchpad #250573)
+
 1.1.1 (2008-07-28)
 ==================
 

src/zc/buildout/tests.py

@@ -1108,9 +1108,9 @@ changes in .svn or CVS directories.
 
     """
 
-def bug_250537_broken_symlink_doesnt_affect_sig():
-    """
-    
+if hasattr(os, 'symlink'):
+    def bug_250537_broken_symlink_doesnt_affect_sig():
+        """
 If we have a develop recipe, it's signature shouldn't be affected by
 broken symlinks, and better yet, computing the hash should not break
 because of the missing target file.