From: Csaba Halasz <Csaba.Halasz@gmail.com>
Date: Sat, 30 Oct 2010 22:36:54 +0000 (+0200)
Subject: Added null pointer check to AI subsystem tear down in FGGlobals destructor to avoid... 
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=27782d7c8b2f8355208ac3ccd7971a02275f9c94;p=flightgear.git

Added null pointer check to AI subsystem tear down in FGGlobals destructor to avoid crash when using --help option
---

diff --git a/src/Main/globals.cxx b/src/Main/globals.cxx
index db6eef28c..c28c9f5d2 100644
--- a/src/Main/globals.cxx
+++ b/src/Main/globals.cxx
@@ -167,8 +167,10 @@ FGGlobals::~FGGlobals()
     // shut down all subsystems, make sure we take down the 
     // AIModels system first.
     SGSubsystem* ai = subsystem_mgr->remove("ai_model");
-    ai->unbind();
-    delete ai;
+    if (ai) {
+        ai->unbind();
+        delete ai;
+    }
     
     subsystem_mgr->unbind();
     delete subsystem_mgr;