fix possible undef ref when gettext is disabled or not installed

SVN revision: 59997

src/e_mod_main.h

@@ -1,8 +1,15 @@
-#define D_(str) dgettext(PACKAGE, str)
-
 #ifndef E_MOD_MAIN_H
 #define E_MOD_MAIN_H
 
+#ifdef ENABLE_NLS
+# include <libintl.h>
+# define D_(string) dgettext(PACKAGE, string)
+#else
+# define bindtextdomain(domain,dir)
+# define bind_textdomain_codeset(domain,codeset)
+# define D_(string) (string)
+#endif
+
 #define RESOLUTION_MINUTE 0
 #define RESOLUTION_SECOND 1