diff -Nur -Xfreecivdiff.ignore freeciv-cvs/server/ruleset.c freeciv-patched/server/ruleset.c
--- freeciv-cvs/server/ruleset.c	2003-07-23 16:36:57.000000000 +0100
+++ freeciv-patched/server/ruleset.c	2003-07-24 16:58:29.000000000 +0100
@@ -958,8 +958,10 @@
   }
   /* FIXME: Remove this restriction when gen-impr implemented. */
   if (nval != B_LAST_ENUM) {
-    freelog(LOG_FATAL, "Bad number of buildings %d (%s)", nval, filename);
-    exit(EXIT_FAILURE);
+    freelog(LOG_ERROR, _("ERROR! Bad number of buildings %d (%s). Although "
+            "this should still work, many building effects are still "
+            "hardcoded, and as such your modified buildings may not behave as "
+            "expected. Proceed with caution!"), nval, filename);
   }
   /* REMOVE TO HERE when gen-impr implemented. */
   game.num_impr_types = nval;