From 1ef24e0404d354d3e102fac676b41a3c228d897c Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Tue, 24 Jan 2012 12:08:12 +0900
Subject: [PATCH] Fix a gl matrix stack overflow.

I'd missed a couple of places for glPopMatrix (worse, one was push!).
---
 libs/video/renderer/gl/gl_sky_clip.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libs/video/renderer/gl/gl_sky_clip.c b/libs/video/renderer/gl/gl_sky_clip.c
index e99f0f390..37154014d 100644
--- a/libs/video/renderer/gl/gl_sky_clip.c
+++ b/libs/video/renderer/gl/gl_sky_clip.c
@@ -703,7 +703,7 @@ draw_black_sky_polys (const instsurf_t *sky_chain)
 			p = p->next;
 		}
 		if (sc->transform)
-			qfglPushMatrix ();
+			qfglPopMatrix ();
 		sc = sc->tex_chain;
 	}
 	qfglEnable (GL_TEXTURE_2D);
@@ -845,6 +845,8 @@ R_DrawSkyChain (const instsurf_t *sky_chain)
 					qfglEnd ();
 					p = p->next;
 				}
+				if (sc->transform)
+					qfglPopMatrix ();
 				sc = sc->tex_chain;
 			}
 		}