https://bugzilla.opensuse.org/show_bug.cgi?id=1109949
https://github.com/mhulden/foma/pull/78

Index: foma-0.9.18+git20170507.07bb944/foma/rewrite.c
===================================================================
--- foma-0.9.18+git20170507.07bb944.orig/foma/rewrite.c
+++ foma-0.9.18+git20170507.07bb944/foma/rewrite.c
@@ -103,7 +103,7 @@ struct fsm *fsm_rewrite(struct rewrite_s
     rb = xxcalloc(1, sizeof(struct rewrite_batch));
     rb->rewrite_set = all_rules;
     rb->num_rules = num_rules;
-    rb->namestrings = xxmalloc(sizeof rb->namestrings * num_rules);
+    rb->namestrings = xxmalloc(sizeof *rb->namestrings * num_rules);
     for (i = 0; i < rb->num_rules; i++) {
 	sprintf(rb->namestrings[i], "@#%04i@", i+1);
     }