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diff --git a/gnulib b/gnulib
deleted file mode 160000
-Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1
diff --git a/gnulib/tests/unistdio/test-ulc-vasnprintf1.c b/gnulib/tests/unistdio/test-ulc-vasnprintf1.c
new file mode 100644
index 0000000..de0c5e3
--- /dev/null
+++ b/gnulib/tests/unistdio/test-ulc-vasnprintf1.c
@@ -0,0 +1,73 @@
+/* Test of ulc_vasnprintf() function.
+   Copyright (C) 2007-2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "unistdio.h"
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+#include "test-ulc-asnprintf1.h"
+#include "test-ulc-printf1.h"
+
+static char *
+my_asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...)
+{
+  va_list args;
+  char *ret;
+
+  va_start (args, format);
+  ret = ulc_vasnprintf (resultbuf, lengthp, format, args);
+  va_end (args);
+  return ret;
+}
+
+static char *
+my_xasprintf (const char *format, ...)
+{
+  va_list args;
+  size_t length;
+  char *ret;
+
+  va_start (args, format);
+  ret = ulc_vasnprintf (NULL, &length, format, args);
+  va_end (args);
+  if (ret != NULL)
+    ASSERT (length == strlen (ret));
+  return ret;
+}
+
+static void
+test_vasnprintf ()
+{
+  test_function (my_asnprintf);
+  test_xfunction (my_xasprintf);
+}
+
+int
+main (int argc, char *argv[])
+{
+  test_vasnprintf ();
+  return 0;
+}