From 4491598bdb1c693c9852eda00f2a5b6bc7760eba Mon Sep 17 00:00:00 2001
From: Eric Wasylishen <ewasylishen@gmail.com>
Date: Fri, 23 Mar 2018 14:48:20 -0600
Subject: [PATCH] qbsp: fix qbsp crash when worldspawn has 0 brushes

---
 qbsp/qbsp.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/qbsp/qbsp.cc b/qbsp/qbsp.cc
index 3e01f044..5f946d4f 100644
--- a/qbsp/qbsp.cc
+++ b/qbsp/qbsp.cc
@@ -43,8 +43,9 @@ ProcessEntity(mapentity_t *entity, const int hullnum)
     surface_t *surfs;
     node_t *nodes;
     
-    /* No map brushes means non-bmodel entity */
-    if (!entity->nummapbrushes)
+    /* No map brushes means non-bmodel entity.
+       We need to handle worldspawn containing no brushes, though. */
+    if (!entity->nummapbrushes && entity != pWorldEnt())
         return;
     
     /*