1 # mbswidth.m4 serial 13
2 dnl Copyright (C) 2000-2002, 2004, 2006 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 dnl autoconf tests required for use of mbswidth.c
10 AC_DEFUN([gl_MBSWIDTH],
12 AC_CHECK_HEADERS_ONCE([wchar.h wctype.h])
13 AC_CHECK_FUNCS_ONCE([isascii mbsinit])
14 AC_CHECK_FUNCS([iswcntrl])
17 dnl UnixWare 7.1.1 <wchar.h> has a declaration of a function mbswidth()
18 dnl that clashes with ours.
19 AC_CACHE_CHECK([whether mbswidth is declared in <wchar.h>],
20 ac_cv_have_decl_mbswidth,
26 char *p = (char *) mbswidth;
28 ], ac_cv_have_decl_mbswidth=yes, ac_cv_have_decl_mbswidth=no)])
29 if test $ac_cv_have_decl_mbswidth = yes; then
34 AC_DEFINE_UNQUOTED(HAVE_DECL_MBSWIDTH_IN_WCHAR_H, $ac_val,
35 [Define to 1 if you have a declaration of mbswidth() in <wchar.h>, and to 0 otherwise.])