From d250d34936d3d9f322cce38a653c9da5ea98acef Mon Sep 17 00:00:00 2001
From: tradke <tradke@bfcf8e34-485d-4d46-a995-1fd6fa6fb178>
Date: Wed, 4 Oct 2006 14:44:10 +0000
Subject: Make only optional use of aliased function Coord_GroupSystem().

git-svn-id: http://svn.cactuscode.org/arrangements/CactusPUGHIO/IsoSurfacer/trunk@92 bfcf8e34-485d-4d46-a995-1fd6fa6fb178
---
 src/IsoSurfacer.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/IsoSurfacer.c b/src/IsoSurfacer.c
index f9f9671..40e4ce5 100644
--- a/src/IsoSurfacer.c
+++ b/src/IsoSurfacer.c
@@ -198,7 +198,11 @@ static void computeIso(int vindex, const cGH *GH, isosurfacerGH *myGH)
 
   /* get the data pointer to the current timelevel of GF X */
   groupname = CCTK_GroupNameFromVarI (vindex);
-  coord_system_handle = Coord_GroupSystem (GH, groupname);
+  coord_system_handle = -1;
+  if (CCTK_IsFunctionAliased ("Coord_GroupSystem"))
+  {
+    coord_system_handle = Coord_GroupSystem (GH, groupname);
+  }
   free (groupname);
 
   Util_TableGetIntArray (coord_system_handle, 3, coord_handles, "COORDINATES");
-- 
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