m4/obstack-printf-posix.m4

   1 # obstack-printf-posix.m4 serial 4
   2 dnl Copyright (C) 2008-2017 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_OBSTACK_PRINTF_POSIX],
   8 [
   9   dnl Persuade glibc <stdio.h> to declare obstack_printf(), obstack_vprintf().
  10   AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
  11
  12   AC_REQUIRE([gl_PRINTF_SIZES_C99])
  13   AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
  14   AC_REQUIRE([gl_PRINTF_INFINITE])
  15   AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE])
  16   AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
  17   AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
  18   AC_REQUIRE([gl_PRINTF_DIRECTIVE_N])
  19   AC_REQUIRE([gl_PRINTF_DIRECTIVE_LS])
  20   AC_REQUIRE([gl_PRINTF_POSITIONS])
  21   AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
  22   AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST])
  23   AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
  24   AC_REQUIRE([gl_PRINTF_PRECISION])
  25   AC_REQUIRE([gl_PRINTF_ENOMEM])
  26   gl_cv_func_obstack_printf_posix=no
  27   AC_CHECK_FUNCS_ONCE([obstack_printf])
  28   if test $ac_cv_func_obstack_printf = yes ; then
  29     case "$gl_cv_func_printf_sizes_c99" in
  30       *yes)
  31         case "$gl_cv_func_printf_long_double" in
  32           *yes)
  33             case "$gl_cv_func_printf_infinite" in
  34               *yes)
  35                 case "$gl_cv_func_printf_infinite_long_double" in
  36                   *yes)
  37                     case "$gl_cv_func_printf_directive_a" in
  38                       *yes)
  39                         case "$gl_cv_func_printf_directive_f" in
  40                           *yes)
  41                             case "$gl_cv_func_printf_directive_n" in
  42                               *yes)
  43                                 case "$gl_cv_func_printf_directive_ls" in
  44                                   *yes)
  45                                     case "$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                                                             # obstack_printf exists and is
  58                                                             # already POSIX compliant.
  59                                                             gl_cv_func_obstack_printf_posix=yes
  60                                                             ;;
  61                                                         esac
  62                                                         ;;
  63                                                     esac
  64                                                     ;;
  65                                                 esac
  66                                                 ;;
  67                                             esac
  68                                             ;;
  69                                         esac
  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   fi
  89   if test $gl_cv_func_obstack_printf_posix = no; then
  90     gl_PREREQ_VASNPRINTF_LONG_DOUBLE
  91     gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE
  92     gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE
  93     gl_PREREQ_VASNPRINTF_DIRECTIVE_A
  94     gl_PREREQ_VASNPRINTF_DIRECTIVE_F
  95     gl_PREREQ_VASNPRINTF_DIRECTIVE_LS
  96     gl_PREREQ_VASNPRINTF_FLAG_GROUPING
  97     gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST
  98     gl_PREREQ_VASNPRINTF_FLAG_ZERO
  99     gl_PREREQ_VASNPRINTF_PRECISION
 100     gl_PREREQ_VASNPRINTF_ENOMEM
 101     gl_REPLACE_VASNPRINTF
 102     gl_REPLACE_OBSTACK_PRINTF
 103   fi
 104   gl_DECL_OBSTACK_PRINTF
 105 ])