[PING patch]: PR/4987: windres does not get stdin input file

[Kai Tietz]

Hi,

This fix is obvious. A missing check for nil filename leads to 
segmentation fault.
I tested this patch for cygwin and linux environment.

ChangeLog:

2007-09-11      Alon Bar-Lev  <alon.barlev@gmail.com>

        * resrc.c: (read_rc_file): Move 'filename' default initialization 
in
        front to function begin.

Cheers,
 i.A. Kai Tietz



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