diff -crB mozilla/toolkit/xre/nsAppRunner.cpp mozilla-fedora/toolkit/xre/nsAppRunner.cpp
*** mozilla/toolkit/xre/nsAppRunner.cpp	2008-04-09 02:42:49.000000000 -0400
--- mozilla-fedora/toolkit/xre/nsAppRunner.cpp	2009-02-26 16:20:44.000000000 -0500
***************
*** 1437,1444 ****
    if (NS_FAILED(rv))
      return rv;
  
! #elif
! #error Oops, you need platform-specific code here
  #endif
  
    NS_ADDREF(*aResult = lf);
--- 1437,1444 ----
    if (NS_FAILED(rv))
      return rv;
  
! //#elif
! //#error Oops, you need platform-specific code here
  #endif
  
    NS_ADDREF(*aResult = lf);
Only in mozilla-fedora/toolkit/xre: nsAppRunner.cpp~