diff --git a/gl/m4/printf.m4 b/gl/m4/printf.m4
index ebca5364c467d51f91324b50bb2b248b3cc725a0..b31efe3e761f8fd004abca9e8999cf397ba83494 100644 (file)
--- a/gl/m4/printf.m4
+++ b/gl/m4/printf.m4
-# printf.m4 serial 33
+# printf.m4 serial 34
dnl Copyright (C) 2003, 2007-2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl ---------------------------------------------------------------------
dnl Result is gl_cv_func_snprintf_retval_c99.
-AC_DEFUN([gl_SNPRINTF_RETVAL_C99],
+AC_DEFUN_ONCE([gl_SNPRINTF_RETVAL_C99],
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles