graphics/libGL build breaks because of missing file GL/glxint.h

[Yuri]

I am getting this:
In file included from glxcmds.c:36:
glxclient.h:53:23: error: GL/glxint.h: No such file or directory
glxclient.h:54:25: error: GL/glxproto.h: No such file or directory
glcontextmodes.c:42:23: error: GL/glxint.h: No such file or directory

...

I think, x11/glproto dependency is missing in graphics/libGL.

In addition, graphics/libGL doesn't list any maintainer. Should be at 
least x11 at freebsd.org

Yuri