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-rw-r--r--m4/printf-posix.m445
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diff --git a/m4/printf-posix.m4 b/m4/printf-posix.m4
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1# printf-posix.m4 serial 5 (gettext-0.18)
2dnl Copyright (C) 2003, 2007, 2009-2010 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7dnl From Bruno Haible.
8dnl Test whether the printf() function supports POSIX/XSI format strings with
9dnl positions.
10
11AC_DEFUN([gt_PRINTF_POSIX],
12[
13 AC_REQUIRE([AC_PROG_CC])
14 AC_CACHE_CHECK([whether printf() supports POSIX/XSI format strings],
15 gt_cv_func_printf_posix,
16 [
17 AC_TRY_RUN([
18#include <stdio.h>
19#include <string.h>
20/* The string "%2$d %1$d", with dollar characters protected from the shell's
21 dollar expansion (possibly an autoconf bug). */
22static char format[] = { '%', '2', '$', 'd', ' ', '%', '1', '$', 'd', '\0' };
23static char buf[100];
24int main ()
25{
26 sprintf (buf, format, 33, 55);
27 return (strcmp (buf, "55 33") != 0);
28}], gt_cv_func_printf_posix=yes, gt_cv_func_printf_posix=no,
29 [
30 AC_EGREP_CPP([notposix], [
31#if defined __NetBSD__ || defined __BEOS__ || defined _MSC_VER || defined __MINGW32__ || defined __CYGWIN__
32 notposix
33#endif
34 ],
35 [gt_cv_func_printf_posix="guessing no"],
36 [gt_cv_func_printf_posix="guessing yes"])
37 ])
38 ])
39 case $gt_cv_func_printf_posix in
40 *yes)
41 AC_DEFINE([HAVE_POSIX_PRINTF], [1],
42 [Define if your printf() function supports format strings with positions.])
43 ;;
44 esac
45])