Index: trac/wiki/formatter.py
===================================================================
--- trac/wiki/formatter.py      (revision 2537)
+++ trac/wiki/formatter.py      (working copy)
@@ -28,6 +28,7 @@
 from trac import util
 from trac.mimeview import *
 from trac.wiki.api import WikiSystem
+from trac.perm import PermissionError

 __all__ = ['wiki_to_html', 'wiki_to_oneliner', 'wiki_to_outline']

@@ -373,6 +374,10 @@
         try:
             macro = WikiProcessor(self.env, name)
             return macro.process(self.req, args, 1)
+        # re-raise PermissionError to allow permission handling in wiki
+        # macros cprov 20051213
+        except PermissionError, e:
+            raise e
         except Exception, e:
             self.env.log.error('Macro %s(%s) failed' % (name, args),
                                exc_info=True)