bootstrap/6539: 3.2 bootstrap failure on irix6.5 - fixproto

[Kaveh R. Ghazi]

Any progress on this PR?  I see the same failure on irix6.2 also.
I've added myself to the cc list in the PR, please keep me in the loop
on any progress.  Thanks.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view audit-trail&database=gcc&pr=6539