1 # mbswidth.m4 serial 11
2 dnl Copyright (C) 2000-2002, 2004 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 iswprint mbsinit)
14 AC_CHECK_FUNCS(iswcntrl wcwidth)
17 AC_CACHE_CHECK([whether wcwidth is declared], ac_cv_have_decl_wcwidth,
19 /* AIX 3.2.5 declares wcwidth in <string.h>. */
28 char *p = (char *) wcwidth;
30 ], ac_cv_have_decl_wcwidth=yes, ac_cv_have_decl_wcwidth=no)])
31 if test $ac_cv_have_decl_wcwidth = yes; then
36 AC_DEFINE_UNQUOTED(HAVE_DECL_WCWIDTH, $ac_val,
37 [Define to 1 if you have the declaration of wcwidth(), and to 0 otherwise.])
39 dnl UnixWare 7.1.1 <wchar.h> has a declaration of a function mbswidth()
40 dnl that clashes with ours.
41 AC_CACHE_CHECK([whether mbswidth is declared in <wchar.h>],
42 ac_cv_have_decl_mbswidth,
48 char *p = (char *) mbswidth;
49 ], ac_cv_have_decl_mbswidth=yes, ac_cv_have_decl_mbswidth=no)])
50 if test $ac_cv_have_decl_mbswidth = yes; then
55 AC_DEFINE_UNQUOTED(HAVE_DECL_MBSWIDTH_IN_WCHAR_H, $ac_val,
56 [Define to 1 if you have a declaration of mbswidth() in <wchar.h>, and to 0 otherwise.])