$OpenBSD: patch-src_FDM_JSBSim_FGFDMExec_cpp,v 1.1 2017/08/21 17:57:01 rsadowski Exp $

fix clang error:
ordered comparison between pointer and zero

Index: src/FDM/JSBSim/FGFDMExec.cpp
--- src/FDM/JSBSim/FGFDMExec.cpp.orig
+++ src/FDM/JSBSim/FGFDMExec.cpp
@@ -211,7 +211,7 @@ FGFDMExec::~FGFDMExec()
   
   SetGroundCallback(0);
 
-  if (FDMctr > 0) (*FDMctr)--;
+  if (FDMctr) (*FDMctr)--;
 
   Debug(1);
 }
