Use cmakedefine01 for more trivial defines

[alexxy/gromacs.git] / src / gromacs / mdlib / qm_mopac.cpp

diff --git a/src/gromacs/mdlib/qm_mopac.cpp b/src/gromacs/mdlib/qm_mopac.cpp
index 7496965bf09be4db5fcce49db1edc2266f4ff30f..16b2d38f03c9f1f5c0b9f4ba7115046faf3f906a 100644 (file)
--- a/src/gromacs/mdlib/qm_mopac.cpp
+++ b/src/gromacs/mdlib/qm_mopac.cpp
@@ -38,7 +38,7 @@
 
 #include "config.h"
 
-#ifdef GMX_QMMM_MOPAC
+#if GMX_QMMM_MOPAC
 
 #include <math.h>
 #include <stdio.h>