2 dnl Copyright (C) 2008, 2010-2021 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.
7 AC_DEFUN([gl_FUNC_MBSINIT],
9 AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
10 AC_REQUIRE([AC_CANONICAL_HOST])
12 AC_REQUIRE([AC_TYPE_MBSTATE_T])
15 AC_CHECK_FUNCS_ONCE([mbsinit])
16 if test $ac_cv_func_mbsinit = no; then
18 AC_CHECK_DECLS([mbsinit],,, [[
21 if test $ac_cv_have_decl_mbsinit = yes; then
22 dnl On Minix 3.1.8, the system's <wchar.h> declares mbsinit() although
23 dnl it does not have the function. Avoid a collision with gnulib's
28 if test $REPLACE_MBSTATE_T = 1; then
31 dnl On mingw, mbsinit() always returns 1, which is inappropriate for
32 dnl states produced by mbrtowc() for an incomplete multibyte character
33 dnl in multibyte locales.
35 mingw*) REPLACE_MBSINIT=1 ;;
41 # Prerequisites of lib/mbsinit.c.
42 AC_DEFUN([gl_PREREQ_MBSINIT], [