--- a/src/signs.cpp Fri Aug 31 20:50:18 2007 +0000
+++ b/src/signs.cpp Fri Aug 31 20:50:59 2007 +0000
@@ -13,6 +13,7 @@
#include "saveload.h"
#include "command.h"
#include "variables.h"
+#include "string.h"
#include "misc/autoptr.hpp"
SignID _new_sign_id;
@@ -128,7 +129,7 @@
/* If _cmd_text 0 means the new text for the sign is non-empty.
* So rename the sign. If it is empty, it has no name, so delete it */
- if (_cmd_text[0] != '\0') {
+ if (!StrEmpty(_cmd_text)) {
/* Create the name */
StringID str = AllocateName(_cmd_text, 0);
if (str == 0) return CMD_ERROR;