m4/vasprintf-posix.m4

   1 # vasprintf-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_VASPRINTF_POSIX],
   9 [
  10   AC_REQUIRE([gl_FUNC_VASPRINTF_IS_POSIX])
  11   if test $gl_cv_func_vasprintf_posix = no; then
  12     gl_PREREQ_VASNPRINTF_WITH_POSIX_EXTRAS
  13     gl_REPLACE_VASNPRINTF
  14     gl_REPLACE_VASPRINTF
  15   fi
  16 ])
  17
  18 dnl Test whether vasprintf exists and is POSIX compliant.
  19 dnl Result is gl_cv_func_vasprintf_posix.
  20 AC_DEFUN([gl_FUNC_VASPRINTF_IS_POSIX],
  21 [
  22   AC_REQUIRE([gl_PRINTF_SIZES_C99])
  23   AC_REQUIRE([gl_PRINTF_SIZES_C23])
  24   AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
  25   AC_REQUIRE([gl_PRINTF_INFINITE])
  26   AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE])
  27   AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
  28   AC_REQUIRE([gl_PRINTF_DIRECTIVE_B])
  29   AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
  30   m4_ifdef([gl_PRINTF_SUPPORT_N_DIRECTIVE],[AC_REQUIRE([gl_PRINTF_DIRECTIVE_N])])
  31   AC_REQUIRE([gl_PRINTF_DIRECTIVE_LS])
  32   AC_REQUIRE([gl_PRINTF_DIRECTIVE_LC])
  33   AC_REQUIRE([gl_PRINTF_POSITIONS])
  34   AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
  35   AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST])
  36   AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
  37   AC_REQUIRE([gl_PRINTF_FLAG_ALT_PRECISION_ZERO])
  38   AC_REQUIRE([gl_PRINTF_PRECISION])
  39   AC_REQUIRE([gl_PRINTF_ENOMEM])
  40   gl_cv_func_vasprintf_posix=no
  41   AC_CHECK_FUNCS([vasprintf])
  42   case "$gl_cv_func_printf_sizes_c99" in
  43     *yes)
  44       case "$gl_cv_func_printf_sizes_c23" in
  45         *yes)
  46           case "$gl_cv_func_printf_long_double" in
  47             *yes)
  48               case "$gl_cv_func_printf_infinite" in
  49                 *yes)
  50                   case "$gl_cv_func_printf_infinite_long_double" in
  51                     *yes)
  52                       case "$gl_cv_func_printf_directive_a" in
  53                         *yes)
  54                           case "$gl_cv_func_printf_directive_b" in
  55                             *yes)
  56                               case "$gl_cv_func_printf_directive_f" in
  57                                 *yes)
  58                                   case m4_ifdef([gl_PRINTF_SUPPORT_N_DIRECTIVE],["$gl_cv_func_printf_directive_n"],["yes"]) in
  59                                     *yes)
  60                                       case "$gl_cv_func_printf_directive_ls" in
  61                                         *yes)
  62                                           case "$gl_cv_func_printf_directive_lc" in
  63                                             *yes)
  64                                               case "$gl_cv_func_printf_positions" in
  65                                                 *yes)
  66                                                   case "$gl_cv_func_printf_flag_grouping" in
  67                                                     *yes)
  68                                                       case "$gl_cv_func_printf_flag_leftadjust" in
  69                                                         *yes)
  70                                                           case "$gl_cv_func_printf_flag_zero" in
  71                                                             *yes)
  72                                                               case "$gl_cv_func_printf_flag_alt_precision_zero" in
  73                                                                 *yes)
  74                                                                   case "$gl_cv_func_printf_precision" in
  75                                                                     *yes)
  76                                                                       case "$gl_cv_func_printf_enomem" in
  77                                                                         *yes)
  78                                                                           if test $ac_cv_func_vasprintf = yes; then
  79                                                                             # vasprintf exists and is
  80                                                                             # already POSIX compliant.
  81                                                                             gl_cv_func_vasprintf_posix=yes
  82                                                                           fi
  83                                                                           ;;
  84                                                                       esac
  85                                                                       ;;
  86                                                                   esac
  87                                                                   ;;
  88                                                               esac
  89                                                               ;;
  90                                                           esac
  91                                                           ;;
  92                                                       esac
  93                                                       ;;
  94                                                   esac
  95                                                   ;;
  96                                               esac
  97                                               ;;
  98                                           esac
  99                                           ;;
 100                                       esac
 101                                       ;;
 102                                   esac
 103                                   ;;
 104                               esac
 105                               ;;
 106                           esac
 107                           ;;
 108                       esac
 109                       ;;
 110                   esac
 111                   ;;
 112               esac
 113               ;;
 114           esac
 115           ;;
 116       esac
 117       ;;
 118   esac
 119 ])