fix possible undef ref when gettext is disabled or not installed

SVN revision: 59997

src/e_mod_main.h

@@ -7,8 +7,14 @@
   ((MOD_CONFIG_FILE_EPOCH << 16) | MOD_CONFIG_FILE_GENERATION)
 
 
-#include <libintl.h>
-#define D_(str) dgettext(PACKAGE, str)
+#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 DBG(...)
 /* #define DBG(...) printf(__VA_ARGS__) */