Commit unaltered VisualBoyAdvance-1.7.2 source code for the next commit <http://vba-m.com/index.php?ind=downloads&op=entry_view&iden=91>
Modify VBA-1.7.2 and make gsfopt! You can view diffs to know what is different.

This version works as well as the unaltered gsfopt (i.e. DOESN'T WORK!)