# mbsinit.m4 serial 8

dnl Copyright (C) 2008, 2010-2017 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_MBSINIT],

[

  AC_REQUIRE([gl_WCHAR_H_DEFAULTS])

  AC_REQUIRE([AC_CANONICAL_HOST])

  AC_REQUIRE([AC_TYPE_MBSTATE_T])

  gl_MBSTATE_T_BROKEN

  AC_CHECK_FUNCS_ONCE([mbsinit])

  if test $ac_cv_func_mbsinit = no; then

    HAVE_MBSINIT=0

    AC_CHECK_DECLS([mbsinit],,, [[

/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before

   <wchar.h>.

   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be

   included before <wchar.h>.  */

#include <stddef.h>

#include <stdio.h>

#include <time.h>

#include <wchar.h>

]])

    if test $ac_cv_have_decl_mbsinit = yes; then

      dnl On Minix 3.1.8, the system's <wchar.h> declares mbsinit() although

      dnl it does not have the function. Avoid a collision with gnulib's

      dnl replacement.

      REPLACE_MBSINIT=1

    fi

  else

    if test $REPLACE_MBSTATE_T = 1; then

      REPLACE_MBSINIT=1

    else

      dnl On mingw, mbsinit() always returns 1, which is inappropriate for

      dnl states produced by mbrtowc() for an incomplete multibyte character

      dnl in multibyte locales.

      case "$host_os" in

        mingw*) REPLACE_MBSINIT=1 ;;

      esac

    fi

  fi

])

# Prerequisites of lib/mbsinit.c.

AC_DEFUN([gl_PREREQ_MBSINIT], [

  :

])