Make sure water optimization is disabled for esoteric interactions

[alexxy/gromacs.git] / src / mdlib / ns.c

diff --git a/src/mdlib/ns.c b/src/mdlib/ns.c
index 6aa89cee38ec196df0f03ae1e64141e4cff356a4..7999e2315552a04578f1cdf15104b6bd05f0e3fc 100644 (file)
--- a/src/mdlib/ns.c
+++ b/src/mdlib/ns.c
@@ -290,7 +290,10 @@ void init_neighbor_list(FILE *log, t_forcerec *fr, int homenr)
             )
         {
             fr->solvent_opt = esolNO;
-            fprintf(log, "Note: The available nonbonded kernels do not support water optimization - disabling.\n");
+            if (log != NULL)
+            {
+                fprintf(log, "Note: The available nonbonded kernels do not support water optimization - disabling.\n");
+            }
         }
 
         if (fr->efep != efepNO)