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# printf-posix.m4 serial 2 (gettext-0.13.1) |
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dnl Copyright (C) 2003 Free Software Foundation, Inc. |
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dnl This file is free software; the Free Software Foundation |
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dnl gives unlimited permission to copy and/or distribute it, |
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dnl with or without modifications, as long as this notice is preserved. |
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|
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dnl From Bruno Haible. |
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dnl Test whether the printf() function supports POSIX/XSI format strings with |
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dnl positions. |
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|
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AC_DEFUN([gt_PRINTF_POSIX], |
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[ |
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AC_REQUIRE([AC_PROG_CC]) |
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AC_CACHE_CHECK([whether printf() supports POSIX/XSI format strings], |
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gt_cv_func_printf_posix, |
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[ |
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AC_TRY_RUN([ |
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#include <stdio.h> |
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#include <string.h> |
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/* The string "%2$d %1$d", with dollar characters protected from the shell's |
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dollar expansion (possibly an autoconf bug). */ |
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static char format[] = { '%', '2', '$', 'd', ' ', '%', '1', '$', 'd', '\0' }; |
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static char buf[100]; |
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int main () |
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{ |
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sprintf (buf, format, 33, 55); |
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return (strcmp (buf, "55 33") != 0); |
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}], gt_cv_func_printf_posix=yes, gt_cv_func_printf_posix=no, |
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[ |
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AC_EGREP_CPP(notposix, [ |
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#if defined __NetBSD__ || defined _MSC_VER || defined __MINGW32__ || defined __CYGWIN__ |
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notposix |
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#endif |
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], gt_cv_func_printf_posix="guessing no", |
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gt_cv_func_printf_posix="guessing yes") |
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]) |
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]) |
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case $gt_cv_func_printf_posix in |
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*yes) |
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AC_DEFINE(HAVE_POSIX_PRINTF, 1, |
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[Define if your printf() function supports format strings with positions.]) |
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;; |
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esac |
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]) |
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