diff -uNr mozilla-orig/toolkit/xre/nsAppRunner.cpp mozilla/toolkit/xre/nsAppRunner.cpp
--- mozilla-orig/toolkit/xre/nsAppRunner.cpp	2009-03-20 11:12:22.000000000 +0100
+++ mozilla/toolkit/xre/nsAppRunner.cpp	2009-03-20 11:14:11.000000000 +0100
@@ -1370,7 +1370,7 @@
   if (NS_FAILED(rv))
     return rv;
 
-#elif
+#else
 #error Oops, you need platform-specific code here
 #endif