| Adam Tkac | fc4cd71 | 2009-03-11 11:14:37 +0000 | [diff] [blame] | 1 | # printf-posix.m4 serial 2 (gettext-0.13.1) |
| 2 | dnl Copyright (C) 2003 Free Software Foundation, Inc. |
| 3 | dnl This file is free software; the Free Software Foundation |
| 4 | dnl gives unlimited permission to copy and/or distribute it, |
| 5 | dnl with or without modifications, as long as this notice is preserved. |
| 6 | |
| 7 | dnl From Bruno Haible. |
| 8 | dnl Test whether the printf() function supports POSIX/XSI format strings with |
| 9 | dnl positions. |
| 10 | |
| 11 | AC_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). */ |
| 22 | static char format[] = { '%', '2', '$', 'd', ' ', '%', '1', '$', 'd', '\0' }; |
| 23 | static char buf[100]; |
| 24 | int 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 _MSC_VER || defined __MINGW32__ || defined __CYGWIN__ |
| 32 | notposix |
| 33 | #endif |
| 34 | ], gt_cv_func_printf_posix="guessing no", |
| 35 | gt_cv_func_printf_posix="guessing yes") |
| 36 | ]) |
| 37 | ]) |
| 38 | case $gt_cv_func_printf_posix in |
| 39 | *yes) |
| 40 | AC_DEFINE(HAVE_POSIX_PRINTF, 1, |
| 41 | [Define if your printf() function supports format strings with positions.]) |
| 42 | ;; |
| 43 | esac |
| 44 | ]) |