fix possible undef ref when gettext is disabled or not installed

SVN revision: 59997

src/e_mod_main.h

@@ -1,16 +1,21 @@
 #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
+
 /* Macros used for config file versioning */
 #define MOD_CONFIG_FILE_EPOCH 0x0001
 #define MOD_CONFIG_FILE_GENERATION 0x008d
 #define MOD_CONFIG_FILE_VERSION \
    ((MOD_CONFIG_FILE_EPOCH << 16) | MOD_CONFIG_FILE_GENERATION)
 
-/* Gettext: you need to use the D_ prefix for all your messages,
- * like  printf D_("Hello World\n");  so can be replaced by gettext */
-#define D_(str) dgettext(PACKAGE, str)
-
 typedef struct _Config Config;
 typedef struct _Config_Item Config_Item;