m4/vsnprintf-posix.m4

   1 # vsnprintf-posix.m4 serial 15
   2 dnl Copyright (C) 2007-2020 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_DIRECTIVE_LS])
  17   AC_REQUIRE([gl_PRINTF_POSITIONS])
  18   AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
  19   AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST])
  20   AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
  21   AC_REQUIRE([gl_PRINTF_PRECISION])
  22   AC_REQUIRE([gl_PRINTF_ENOMEM])
  23   gl_cv_func_vsnprintf_posix=no
  24   AC_CHECK_FUNCS([vsnprintf])
  25   if test $ac_cv_func_vsnprintf = yes; then
  26     dnl These tests use vsnprintf() if snprintf() does not exist.
  27     gl_SNPRINTF_TRUNCATION_C99
  28     gl_SNPRINTF_RETVAL_C99
  29     gl_SNPRINTF_DIRECTIVE_N
  30     gl_SNPRINTF_SIZE1
  31     gl_VSNPRINTF_ZEROSIZE_C99
  32     case "$gl_cv_func_printf_sizes_c99" in
  33       *yes)
  34         case "$gl_cv_func_printf_long_double" in
  35           *yes)
  36             case "$gl_cv_func_printf_infinite" in
  37               *yes)
  38                 case "$gl_cv_func_printf_infinite_long_double" in
  39                   *yes)
  40                     case "$gl_cv_func_printf_directive_a" in
  41                       *yes)
  42                         case "$gl_cv_func_printf_directive_f" in
  43                           *yes)
  44                             case "$gl_cv_func_printf_directive_n" in
  45                               *yes)
  46                                 case "$gl_cv_func_printf_directive_ls" in
  47                                   *yes)
  48                                     case "$gl_cv_func_printf_positions" in
  49                                       *yes)
  50                                         case "$gl_cv_func_printf_flag_grouping" in
  51                                           *yes)
  52                                             case "$gl_cv_func_printf_flag_leftadjust" in
  53                                               *yes)
  54                                                 case "$gl_cv_func_printf_flag_zero" in
  55                                                   *yes)
  56                                                     case "$gl_cv_func_printf_precision" in
  57                                                       *yes)
  58                                                         case "$gl_cv_func_printf_enomem" in
  59                                                           *yes)
  60                                                             case "$gl_cv_func_snprintf_truncation_c99" in
  61                                                               *yes)
  62                                                                 case "$gl_cv_func_snprintf_retval_c99" in
  63                                                                   *yes)
  64                                                                     case "$gl_cv_func_snprintf_directive_n" in
  65                                                                       *yes)
  66                                                                         case "$gl_cv_func_snprintf_size1" in
  67                                                                           *yes)
  68                                                                             case "$gl_cv_func_vsnprintf_zerosize_c99" in
  69                                                                               *yes)
  70                                                                                 # vsnprintf exists and is
  71                                                                                 # already POSIX compliant.
  72                                                                                 gl_cv_func_vsnprintf_posix=yes
  73                                                                                 ;;
  74                                                                             esac
  75                                                                             ;;
  76                                                                         esac
  77                                                                         ;;
  78                                                                     esac
  79                                                                     ;;
  80                                                                 esac
  81                                                                 ;;
  82                                                             esac
  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   fi
 112   if test $gl_cv_func_vsnprintf_posix = no; then
 113     gl_PREREQ_VASNPRINTF_LONG_DOUBLE
 114     gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE
 115     gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE
 116     gl_PREREQ_VASNPRINTF_DIRECTIVE_A
 117     gl_PREREQ_VASNPRINTF_DIRECTIVE_F
 118     gl_PREREQ_VASNPRINTF_DIRECTIVE_LS
 119     gl_PREREQ_VASNPRINTF_FLAG_GROUPING
 120     gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST
 121     gl_PREREQ_VASNPRINTF_FLAG_ZERO
 122     gl_PREREQ_VASNPRINTF_PRECISION
 123     gl_PREREQ_VASNPRINTF_ENOMEM
 124     gl_REPLACE_VASNPRINTF
 125     gl_REPLACE_VSNPRINTF
 126   fi
 127 ])