ports/162915: [patch] graphics/glfw: unbreak build with clang

[edwin at FreeBSD.org]

Synopsis: [patch] graphics/glfw: unbreak build with clang

Responsible-Changed-From-To: freebsd-ports-bugs->miwi
Responsible-Changed-By: edwin
Responsible-Changed-When: Mon Nov 28 05:50:34 UTC 2011
Responsible-Changed-Why: 
miwi@ wants his PRs (via the GNATS Auto Assign Tool)

http://www.freebsd.org/cgi/query-pr.cgi?pr=162915