From 1f5c0921c2fe3f8790a4f4035883a0d3db3a9031 Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Mon, 23 Jul 2018 17:16:53 -0400
Subject: same for potts...

---
 src/wolff_potts.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src')

diff --git a/src/wolff_potts.cpp b/src/wolff_potts.cpp
index 5de7f9c..e3259e4 100644
--- a/src/wolff_potts.cpp
+++ b/src/wolff_potts.cpp
@@ -121,6 +121,7 @@ int main(int argc, char *argv[]) {
   } else {
     // a more complex example: measure the average magnetization, and draw the spin configuration to the screen
 
+#ifdef HAVE_GLUT
     // initialize glut
     glutInit(&argc, argv);
     glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
@@ -141,6 +142,7 @@ int main(int argc, char *argv[]) {
       }
       glFlush();
     };
+#endif
   }
 
   // run wolff for N cluster flips
-- 
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