Return to printf-posix.m4 CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / libiconv / srcm4

Annotation of embedaddon/libiconv/srcm4/printf-posix.m4, revision 1.1.1.3

1.1.1.2   misho       1: # printf-posix.m4 serial 6 (gettext-0.18.2)
1.1.1.3 ! misho       2: dnl Copyright (C) 2003, 2007, 2009-2019 Free Software Foundation, Inc.
1.1       misho       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:     [
1.1.1.2   misho      17:       AC_RUN_IFELSE(
                     18:         [AC_LANG_SOURCE([[
1.1       misho      19: #include <stdio.h>
                     20: #include <string.h>
                     21: /* The string "%2$d %1$d", with dollar characters protected from the shell's
                     22:    dollar expansion (possibly an autoconf bug).  */
                     23: static char format[] = { '%', '2', '$', 'd', ' ', '%', '1', '$', 'd', '\0' };
                     24: static char buf[100];
                     25: int main ()
                     26: {
                     27:   sprintf (buf, format, 33, 55);
                     28:   return (strcmp (buf, "55 33") != 0);
1.1.1.2   misho      29: }]])],
                     30:         [gt_cv_func_printf_posix=yes],
                     31:         [gt_cv_func_printf_posix=no],
                     32:         [
                     33:           AC_EGREP_CPP([notposix], [
1.1       misho      34: #if defined __NetBSD__ || defined __BEOS__ || defined _MSC_VER || defined __MINGW32__ || defined __CYGWIN__
                     35:   notposix
                     36: #endif
1.1.1.2   misho      37:             ],
                     38:             [gt_cv_func_printf_posix="guessing no"],
                     39:             [gt_cv_func_printf_posix="guessing yes"])
                     40:         ])
1.1       misho      41:     ])
                     42:   case $gt_cv_func_printf_posix in
                     43:     *yes)
                     44:       AC_DEFINE([HAVE_POSIX_PRINTF], [1],
                     45:         [Define if your printf() function supports format strings with positions.])
                     46:       ;;
                     47:   esac
                     48: ])