ports/164596: www/firefox: patch to fix build on sparc64

[edwin at FreeBSD.org]

Synopsis: www/firefox: patch to fix build on sparc64

Responsible-Changed-From-To: freebsd-ports-bugs->gecko
Responsible-Changed-By: edwin
Responsible-Changed-When: Sun Jan 29 11:40:22 UTC 2012
Responsible-Changed-Why: 
Over to maintainer (via the GNATS Auto Assign Tool)

http://www.freebsd.org/cgi/query-pr.cgi?pr=164596