[Wine] Fbconfig patch - how to install?

[fruhwirth at gmail.com]

I was having the same problem as this guy:
http://bugs.winehq.org/show_bug.cgi?id=6215

Basically when starting winecfg it says "rr:wgl:has_opengl  glx_version
as 1.3 and GLX_SGIX_fbconfig extension is unsupported. Expect
problems."  Those problems become very regular and predictable: I get a
runtime error 380 everytime I try to run a particular chat client.

http://www.winehq.org/pipermail/wine-patches/2006-September/030669.html

This web site is the fix.  It provides a piece of code that is supposed
to replace some other code in some other file.  I'm too noob to
understand where/how to put this patch in.  I have the code saved on my
desktop but have no idea what to do next.  I've never replaced code
before.

Can anyone help?