1 files changed, 5 insertions, 6 deletions
diff --git a/src/Comm.c b/src/Comm.c
index 713d8d7..833ad9e 100644
--- a/src/Comm.c
+++ b/src/Comm.c
@@ -331,16 +331,15 @@ int PUGH_SyncGArray(pGA *GA)
 }
 
 
-int PUGH_Barrier(cGH *GH)
+int PUGH_Barrier(const cGH *GH)
 {
 #ifdef CCTK_MPI
-  CACTUS_MPI_ERROR(MPI_Barrier(PUGH_pGH(GH)->PUGH_COMM_WORLD));
-#endif
-
-  /* get rid of compiler warning about unused parameters */
+  CACTUS_MPI_ERROR (MPI_Barrier (PUGH_pGH (GH)->PUGH_COMM_WORLD));
+#else
   GH = GH;
+#endif
 
-  return 0;
+  return (0);
 }