# HG changeset patch
# User Sergey Poznyakoff <gray@gnu.org.ua>
# Date 1158052000 0
# Node ID 33903d90fa2b6208d95a2181f7c91c7e62c0a60a
# Parent  2882fa1b504b7637559b2d4c7e54142dd0fd10ab
(argp_doc): Make sure NULL is not passed to dgettext

diff --git a/lib/argp-help.c b/lib/argp-help.c
--- a/lib/argp-help.c
+++ b/lib/argp-help.c
@@ -1496,7 +1496,7 @@
 	}
       else
 	inp_text = post ? 0 : argp->doc;
-      trans_text = dgettext (argp->argp_domain, inp_text);
+      trans_text = inp_text ? dgettext (argp->argp_domain, inp_text) : NULL;
     }
   else
     trans_text = inp_text = 0;