m4/vasnprintf-posix.m4

   1 # vasnprintf-posix.m4 serial 7
   2 dnl Copyright (C) 2007 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_VASNPRINTF_POSIX],
   8 [
   9   AC_REQUIRE([gl_EOVERFLOW])
  10   AC_REQUIRE([gl_PRINTF_SIZES_C99])
  11   AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
  12   AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
  13   AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
  14   AC_REQUIRE([gl_PRINTF_DIRECTIVE_N])
  15   AC_REQUIRE([gl_PRINTF_POSITIONS])
  16   AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
  17   AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
  18   gl_cv_func_vasnprintf_posix=no
  19   AC_CHECK_FUNCS_ONCE([vasnprintf])
  20   case "$gl_cv_func_printf_sizes_c99" in
  21     *yes)
  22       case "$gl_cv_func_printf_long_double" in
  23         *yes)
  24           case "$gl_cv_func_printf_directive_a" in
  25             *yes)
  26               case "$gl_cv_func_printf_directive_f" in
  27                 *yes)
  28                   case "$gl_cv_func_printf_directive_n" in
  29                     *yes)
  30                       case "$gl_cv_func_printf_positions" in
  31                         *yes)
  32                           case "$gl_cv_func_printf_flag_grouping" in
  33                             *yes)
  34                               case "$gl_cv_func_printf_flag_zero" in
  35                                 *yes)
  36                                   if test $ac_cv_func_vasnprintf = yes; then
  37                                     # vasnprintf exists and is already POSIX
  38                                     # compliant.
  39                                     gl_cv_func_vasnprintf_posix=yes
  40                                   fi
  41                                   ;;
  42                               esac
  43                               ;;
  44                           esac
  45                           ;;
  46                       esac
  47                       ;;
  48                   esac
  49                   ;;
  50               esac
  51               ;;
  52           esac
  53           ;;
  54       esac
  55       ;;
  56   esac
  57   if test $gl_cv_func_vasnprintf_posix = no; then
  58     gl_PREREQ_VASNPRINTF_LONG_DOUBLE
  59     gl_PREREQ_VASNPRINTF_DIRECTIVE_A
  60     gl_PREREQ_VASNPRINTF_DIRECTIVE_F
  61     gl_PREREQ_VASNPRINTF_FLAG_GROUPING
  62     gl_PREREQ_VASNPRINTF_FLAG_ZERO
  63     gl_REPLACE_VASNPRINTF
  64   fi
  65 ])