--- m-fgrep.c.orig	2011-01-29 13:58:17.000000000 +0100
+++ m-fgrep.c	2011-01-29 13:59:19.000000000 +0100
@@ -80,7 +80,7 @@
       ckwset->kwset = kwsalloc (NULL);
     }
   if (ckwset->kwset == NULL)
-    error (exit_failure, 0, _("memory exhausted"));
+    error (exit_failure, 0, "%s", _("memory exhausted"));
   ckwset->match_words = match_words;
   ckwset->match_lines = match_lines;
   ckwset->eolbyte = eolbyte;
@@ -106,7 +106,7 @@
       for (lim = beg; lim < pattern + pattern_size && *lim != '\n'; ++lim)
         ;
       if ((err = kwsincr (ckwset->kwset, beg, lim - beg)) != NULL)
-        error (exit_failure, 0, err);
+        error (exit_failure, 0, "%s", err);
       if (lim < pattern + pattern_size)
         ++lim;
       beg = lim;
@@ -114,7 +114,7 @@
   while (beg < pattern + pattern_size);
 
   if ((err = kwsprep (ckwset->kwset)) != NULL)
-    error (exit_failure, 0, err);
+    error (exit_failure, 0, "%s", err);
   return ckwset;
 }