# sprintf-posix.m4 serial 1
dnl Copyright (C) 2007 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

AC_DEFUN([gl_FUNC_SPRINTF_POSIX],
[
  AC_REQUIRE([gl_EOVERFLOW])
  AC_REQUIRE([gl_PRINTF_SIZES_C99])
  AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
  AC_REQUIRE([gl_PRINTF_DIRECTIVE_N])
  AC_REQUIRE([gl_PRINTF_POSITIONS])
  gl_cv_func_sprintf_posix=no
  case "$gl_cv_func_printf_sizes_c99" in
    *yes)
      case "$gl_cv_func_printf_directive_a" in
        *yes)
          case "$gl_cv_func_printf_directive_n" in
            *yes)
              case "$gl_cv_func_printf_positions" in
                *yes)
                  # sprintf exists and is already POSIX compliant.
                  gl_cv_func_sprintf_posix=yes
                  ;;
              esac
              ;;
          esac
          ;;
      esac
      ;;
  esac
  if test $gl_cv_func_sprintf_posix = no; then
    if ! expr "$gl_cv_func_printf_directive_a" : ".*yes" > /dev/null; then
      AC_DEFINE([NEED_PRINTF_DIRECTIVE_A], 1,
        [Define if the vasnprintf implementation needs special code for
         the 'a' and 'A' directives.])
    fi
    gl_REPLACE_VASNPRINTF
    gl_REPLACE_SPRINTF
  fi
])

AC_DEFUN([gl_REPLACE_SPRINTF],
[
  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
  AC_LIBOBJ([sprintf])
  REPLACE_SPRINTF=1
  gl_PREREQ_SPRINTF
])

AC_DEFUN([gl_PREREQ_SPRINTF], [:])