diff --git a/localedata/xfrm-test.c b/localedata/xfrm-test.c
index d2aba7d..c40a7e6 100644
--- a/localedata/xfrm-test.c
+++ b/localedata/xfrm-test.c
@@ -24,6 +24,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+/* Keep in sync with string/strxfrm_l.c.  */
+#define SMALL_STR_SIZE 4095
 
 struct lines
 {
@@ -36,7 +38,7 @@ static int xstrcmp (const void *, const void *);
 int
 main (int argc, char *argv[])
 {
-  int result = 0;
+  int result = 0, nocache = 0;
   size_t nstrings, nstrings_max;
   struct lines *strings;
   char *line = NULL;
@@ -44,7 +46,18 @@ main (int argc, char *argv[])
   size_t n;
 
   if (argc < 2)
-    error (1, 0, "usage: %s <random seed>", argv[0]);
+    error (1, 0, "usage: %s <random seed> [-nocache]", argv[0]);
+
+  if (argc == 3)
+    {
+      if (strcmp (argv[2], "-nocache") == 0)
+	nocache = 1;
+      else
+	{
+	  printf ("Unknown option %s!\n", argv[2]);
+	  exit (1);
+	}
+    }
 
   setlocale (LC_ALL, "");
 
@@ -59,9 +72,9 @@ main (int argc, char *argv[])
 
   while (1)
     {
-      char saved, *newp;
-      int needed;
-      int l;
+      char saved, *word, *newp;
+      size_t l, line_len, needed;
+
       if (getline (&line, &len, stdin) < 0)
 	break;
 
@@ -83,10 +96,35 @@ main (int argc, char *argv[])
 
       saved = line[l];
       line[l] = '\0';
-      needed = strxfrm (NULL, line, 0);
+
+      if (nocache)
+	{
+	  line_len = strlen (line);
+	  word = malloc (line_len + SMALL_STR_SIZE + 1);
+	  if (word == NULL)
+	    {
+	      perror (argv[0]);
+	      exit (1);
+	    }
+	  memset (word, ' ', SMALL_STR_SIZE);
+	  memcpy (word + SMALL_STR_SIZE, line, line_len);
+	  word[line_len + SMALL_STR_SIZE] = '\0';
+	}
+      else
+        word = line;
+
+      needed = strxfrm (NULL, word, 0);
       newp = malloc (needed + 1);
-      strxfrm (newp, line, needed + 1);
+      if (newp == NULL)
+	{
+	  perror (argv[0]);
+	  exit (1);
+	}
+      strxfrm (newp, word, needed + 1);
       strings[nstrings].xfrm = newp;
+
+      if (nocache)
+	free (word);
       line[l] = saved;
       ++nstrings;
     }