m4/vasnprintf-posix.m4

   1 # vasnprintf-posix.m4 serial 4
   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_DIRECTIVE_A])
  12   AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
  13   AC_REQUIRE([gl_PRINTF_DIRECTIVE_N])
  14   AC_REQUIRE([gl_PRINTF_POSITIONS])
  15   gl_cv_func_vasnprintf_posix=no
  16   AC_CHECK_FUNCS_ONCE([vasnprintf])
  17   case "$gl_cv_func_printf_sizes_c99" in
  18     *yes)
  19       case "$gl_cv_func_printf_directive_a" in
  20         *yes)
  21           case "$gl_cv_func_printf_directive_f" in
  22             *yes)
  23               case "$gl_cv_func_printf_directive_n" in
  24                 *yes)
  25                   case "$gl_cv_func_printf_positions" in
  26                     *yes)
  27                       if test $ac_cv_func_vasnprintf = yes; then
  28                         # vasnprintf exists and is already POSIX compliant.
  29                         gl_cv_func_vasnprintf_posix=yes
  30                       fi
  31                       ;;
  32                   esac
  33                   ;;
  34               esac
  35               ;;
  36           esac
  37           ;;
  38       esac
  39       ;;
  40   esac
  41   if test $gl_cv_func_vasnprintf_posix = no; then
  42     gl_PREREQ_VASNPRINTF_DIRECTIVE_A
  43     gl_PREREQ_VASNPRINTF_DIRECTIVE_F
  44     gl_REPLACE_VASNPRINTF
  45   fi
  46 ])