Compile fix for Linux 64-bit.

diff --git a/common/options.c b/common/options.c
index ef9a32be47060ba028c88e2239e7aa4d4758a5d5..3c8ac93c3d84e8cfba57da8e491c88fbdd264be2 100644 (file)
--- a/common/options.c
+++ b/common/options.c
@@ -2594,7 +2594,7 @@ store_option(struct data_string *result, struct universe *universe,
                                                  "refers to unknown "
                                                  "option space '%.*s'.",
                                                  oc->option->code,
-                                                 end - start, start);
+                                                 (int)(end - start), start);
                                        break;
                                }