m4/vsnprintf-posix.m4

   1 # vsnprintf-posix.m4 serial 13
   2 dnl Copyright (C) 2007-2008 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 AC_DEFUN([gl_FUNC_VSNPRINTF_POSIX],
   8 [
   9   AC_REQUIRE([gl_PRINTF_SIZES_C99])
  10   AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
  11   AC_REQUIRE([gl_PRINTF_INFINITE])
  12   AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE])
  13   AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
  14   AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
  15   AC_REQUIRE([gl_PRINTF_DIRECTIVE_N])
  16   AC_REQUIRE([gl_PRINTF_POSITIONS])
  17   AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
  18   AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST])
  19   AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
  20   AC_REQUIRE([gl_PRINTF_PRECISION])
  21   AC_REQUIRE([gl_PRINTF_ENOMEM])
  22   gl_cv_func_vsnprintf_posix=no
  23   AC_CHECK_FUNCS([vsnprintf])
  24   if test $ac_cv_func_vsnprintf = yes; then
  25     dnl Assume that if vsnprintf() exists, snprintf() also exists.
  26     gl_SNPRINTF_TRUNCATION_C99
  27     gl_SNPRINTF_RETVAL_C99
  28     gl_SNPRINTF_DIRECTIVE_N
  29     gl_SNPRINTF_SIZE1
  30     gl_VSNPRINTF_ZEROSIZE_C99
  31     case "$gl_cv_func_printf_sizes_c99" in
  32       *yes)
  33         case "$gl_cv_func_printf_long_double" in
  34           *yes)
  35             case "$gl_cv_func_printf_infinite" in
  36               *yes)
  37                 case "$gl_cv_func_printf_infinite_long_double" in
  38                   *yes)
  39                     case "$gl_cv_func_printf_directive_a" in
  40                       *yes)
  41                         case "$gl_cv_func_printf_directive_f" in
  42                           *yes)
  43                             case "$gl_cv_func_printf_directive_n" in
  44                               *yes)
  45                                 case "$gl_cv_func_printf_positions" in
  46                                   *yes)
  47                                     case "$gl_cv_func_printf_flag_grouping" in
  48                                       *yes)
  49                                         case "$gl_cv_func_printf_flag_leftadjust" in
  50                                           *yes)
  51                                             case "$gl_cv_func_printf_flag_zero" in
  52                                               *yes)
  53                                                 case "$gl_cv_func_printf_precision" in
  54                                                   *yes)
  55                                                     case "$gl_cv_func_printf_enomem" in
  56                                                       *yes)
  57                                                         case "$gl_cv_func_snprintf_truncation_c99" in
  58                                                           *yes)
  59                                                             case "$gl_cv_func_snprintf_retval_c99" in
  60                                                               *yes)
  61                                                                 case "$gl_cv_func_snprintf_directive_n" in
  62                                                                   *yes)
  63                                                                     case "$gl_cv_func_snprintf_size1" in
  64                                                                       *yes)
  65                                                                         case "$gl_cv_func_vsnprintf_zerosize_c99" in
  66                                                                           *yes)
  67                                                                             # vsnprintf exists and is
  68                                                                             # already POSIX compliant.
  69                                                                             gl_cv_func_vsnprintf_posix=yes
  70                                                                             ;;
  71                                                                         esac
  72                                                                         ;;
  73                                                                     esac
  74                                                                     ;;
  75                                                                 esac
  76                                                                 ;;
  77                                                             esac
  78                                                             ;;
  79                                                         esac
  80                                                         ;;
  81                                                     esac
  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   fi
 107   if test $gl_cv_func_vsnprintf_posix = no; then
 108     gl_PREREQ_VASNPRINTF_LONG_DOUBLE
 109     gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE
 110     gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE
 111     gl_PREREQ_VASNPRINTF_DIRECTIVE_A
 112     gl_PREREQ_VASNPRINTF_DIRECTIVE_F
 113     gl_PREREQ_VASNPRINTF_FLAG_GROUPING
 114     gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST
 115     gl_PREREQ_VASNPRINTF_FLAG_ZERO
 116     gl_PREREQ_VASNPRINTF_PRECISION
 117     gl_PREREQ_VASNPRINTF_ENOMEM
 118     gl_REPLACE_VASNPRINTF
 119     gl_REPLACE_VSNPRINTF
 120   fi
 121 ])