m4/vasnprintf-posix.m4

   1 # vasnprintf-posix.m4
   2 # serial 20
   3 dnl Copyright (C) 2007-2024 Free Software Foundation, Inc.
   4 dnl This file is free software; the Free Software Foundation
   5 dnl gives unlimited permission to copy and/or distribute it,
   6 dnl with or without modifications, as long as this notice is preserved.
   7
   8 AC_DEFUN([gl_FUNC_VASNPRINTF_POSIX],
   9 [
  10   AC_REQUIRE([gl_FUNC_VASNPRINTF_IS_POSIX])
  11   if test $gl_cv_func_vasnprintf_posix = no; then
  12     gl_PREREQ_VASNPRINTF_WITH_POSIX_EXTRAS
  13     gl_REPLACE_VASNPRINTF
  14   fi
  15 ])
  16
  17 dnl Test whether vasnprintf exists and is POSIX compliant.
  18 dnl Result is gl_cv_func_vasnprintf_posix.
  19 AC_DEFUN_ONCE([gl_FUNC_VASNPRINTF_IS_POSIX],
  20 [
  21   AC_REQUIRE([gl_PRINTF_SIZES_C99])
  22   AC_REQUIRE([gl_PRINTF_SIZES_C23])
  23   AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
  24   AC_REQUIRE([gl_PRINTF_INFINITE])
  25   AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE])
  26   AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
  27   AC_REQUIRE([gl_PRINTF_DIRECTIVE_B])
  28   AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
  29   m4_ifdef([gl_PRINTF_SUPPORT_N_DIRECTIVE],[AC_REQUIRE([gl_PRINTF_DIRECTIVE_N])])
  30   AC_REQUIRE([gl_PRINTF_DIRECTIVE_LS])
  31   AC_REQUIRE([gl_PRINTF_DIRECTIVE_LC])
  32   AC_REQUIRE([gl_PRINTF_POSITIONS])
  33   AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
  34   AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST])
  35   AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
  36   AC_REQUIRE([gl_PRINTF_FLAG_ALT_PRECISION_ZERO])
  37   AC_REQUIRE([gl_PRINTF_PRECISION])
  38   AC_REQUIRE([gl_PRINTF_ENOMEM])
  39   gl_cv_func_vasnprintf_posix=no
  40   AC_CHECK_FUNCS_ONCE([vasnprintf])
  41   case "$gl_cv_func_printf_sizes_c99" in
  42     *yes)
  43       case "$gl_cv_func_printf_sizes_c23" in
  44         *yes)
  45           case "$gl_cv_func_printf_long_double" in
  46             *yes)
  47               case "$gl_cv_func_printf_infinite" in
  48                 *yes)
  49                   case "$gl_cv_func_printf_infinite_long_double" in
  50                     *yes)
  51                       case "$gl_cv_func_printf_directive_a" in
  52                         *yes)
  53                           case "$gl_cv_func_printf_directive_b" in
  54                             *yes)
  55                               case "$gl_cv_func_printf_directive_f" in
  56                                 *yes)
  57                                   case m4_ifdef([gl_PRINTF_SUPPORT_N_DIRECTIVE],["$gl_cv_func_printf_directive_n"],["yes"]) in
  58                                     *yes)
  59                                       case "$gl_cv_func_printf_directive_ls" in
  60                                         *yes)
  61                                           case "$gl_cv_func_printf_directive_lc" in
  62                                             *yes)
  63                                               case "$gl_cv_func_printf_positions" in
  64                                                 *yes)
  65                                                   case "$gl_cv_func_printf_flag_grouping" in
  66                                                     *yes)
  67                                                       case "$gl_cv_func_printf_flag_leftadjust" in
  68                                                         *yes)
  69                                                           case "$gl_cv_func_printf_flag_zero" in
  70                                                             *yes)
  71                                                               case "$gl_cv_func_printf_flag_alt_precision_zero" in
  72                                                                 *yes)
  73                                                                   case "$gl_cv_func_printf_precision" in
  74                                                                     *yes)
  75                                                                       case "$gl_cv_func_printf_enomem" in
  76                                                                         *yes)
  77                                                                           if test $ac_cv_func_vasnprintf = yes; then
  78                                                                             # vasnprintf exists and is
  79                                                                             # already POSIX compliant.
  80                                                                             gl_cv_func_vasnprintf_posix=yes
  81                                                                           fi
  82                                                                           ;;
  83                                                                       esac
  84                                                                       ;;
  85                                                                   esac
  86                                                                   ;;
  87                                                               esac
  88                                                               ;;
  89                                                           esac
  90                                                           ;;
  91                                                       esac
  92                                                       ;;
  93                                                   esac
  94                                                   ;;
  95                                               esac
  96                                               ;;
  97                                           esac
  98                                           ;;
  99                                       esac
 100                                       ;;
 101                                   esac
 102                                   ;;
 103                               esac
 104                               ;;
 105                           esac
 106                           ;;
 107                       esac
 108                       ;;
 109                   esac
 110                   ;;
 111               esac
 112               ;;
 113           esac
 114           ;;
 115       esac
 116       ;;
 117   esac
 118 ])