m4/obstack-printf-posix.m4

   1 # obstack-printf-posix.m4 serial 2
   2 dnl Copyright (C) 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_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_POSITIONS])
  20   AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
  21   AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST])
  22   AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
  23   AC_REQUIRE([gl_PRINTF_PRECISION])
  24   AC_REQUIRE([gl_PRINTF_ENOMEM])
  25   gl_cv_func_obstack_printf_posix=no
  26   AC_CHECK_FUNCS_ONCE([obstack_printf])
  27   if test $ac_cv_func_obstack_printf = yes ; then
  28     case "$gl_cv_func_printf_sizes_c99" in
  29       *yes)
  30         case "$gl_cv_func_printf_long_double" in
  31           *yes)
  32             case "$gl_cv_func_printf_infinite" in
  33               *yes)
  34                 case "$gl_cv_func_printf_infinite_long_double" in
  35                   *yes)
  36                     case "$gl_cv_func_printf_directive_a" in
  37                       *yes)
  38                         case "$gl_cv_func_printf_directive_f" in
  39                           *yes)
  40                             case "$gl_cv_func_printf_directive_n" in
  41                               *yes)
  42                                 case "$gl_cv_func_printf_positions" in
  43                                   *yes)
  44                                     case "$gl_cv_func_printf_flag_grouping" in
  45                                       *yes)
  46                                         case "$gl_cv_func_printf_flag_leftadjust" in
  47                                           *yes)
  48                                             case "$gl_cv_func_printf_flag_zero" in
  49                                               *yes)
  50                                                 case "$gl_cv_func_printf_precision" in
  51                                                   *yes)
  52                                                     case "$gl_cv_func_printf_enomem" in
  53                                                       *yes)
  54                                                         # obstack_printf exists and is
  55                                                         # already POSIX compliant.
  56                                                         gl_cv_func_obstack_printf_posix= yes
  57                                                         ;;
  58                                                     esac
  59                                                     ;;
  60                                                 esac
  61                                                 ;;
  62                                             esac
  63                                             ;;
  64                                         esac
  65                                         ;;
  66                                     esac
  67                                     ;;
  68                                 esac
  69                                 ;;
  70                             esac
  71                             ;;
  72                         esac
  73                         ;;
  74                     esac
  75                     ;;
  76                 esac
  77                 ;;
  78             esac
  79             ;;
  80         esac
  81         ;;
  82     esac
  83   fi
  84   if test $gl_cv_func_obstack_printf_posix = no; then
  85     gl_PREREQ_VASNPRINTF_LONG_DOUBLE
  86     gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE
  87     gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE
  88     gl_PREREQ_VASNPRINTF_DIRECTIVE_A
  89     gl_PREREQ_VASNPRINTF_DIRECTIVE_F
  90     gl_PREREQ_VASNPRINTF_FLAG_GROUPING
  91     gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST
  92     gl_PREREQ_VASNPRINTF_FLAG_ZERO
  93     gl_PREREQ_VASNPRINTF_PRECISION
  94     gl_PREREQ_VASNPRINTF_ENOMEM
  95     gl_REPLACE_VASNPRINTF
  96     gl_REPLACE_OBSTACK_PRINTF
  97   fi
  98 ])