Merge release-4-6 into release-5-0

[alexxy/gromacs.git] / src / gromacs / gmxpreprocess / readpull.c

diff --git a/src/gromacs/gmxpreprocess/readpull.c b/src/gromacs/gmxpreprocess/readpull.c
index 9f8b5769bcfec7d3f3e62898739ecb9ae64af694..aebd0d9e679e174678dc410085eb7d02f46dd270 100644 (file)
--- a/src/gromacs/gmxpreprocess/readpull.c
+++ b/src/gromacs/gmxpreprocess/readpull.c
@@ -252,6 +252,11 @@ void make_pull_groups(t_pull *pull,
     {
         pgrp = &pull->group[g];
 
+        if (strcmp(pgnames[g], "") == 0)
+        {
+            gmx_fatal(FARGS, "Group pull_group%d required by grompp was undefined.", g);
+        }
+
         ig        = search_string(pgnames[g], grps->nr, gnames);
         pgrp->nat = grps->index[ig+1] - grps->index[ig];