1 # mbswidth.m4 serial 11
2 dnl Copyright (C) 2000-2002, 2004 Free Software Foundation, Inc.
3 dnl This file is free software, distributed under the terms of the GNU
4 dnl General Public License. As a special exception to the GNU General
5 dnl Public License, this file may be distributed as part of a program
6 dnl that contains a configuration script generated by Autoconf, under
7 dnl the same distribution terms as the rest of that program.
9 dnl autoconf tests required for use of mbswidth.c
10 dnl From Bruno Haible.
12 AC_DEFUN([gl_MBSWIDTH],
14 AC_CHECK_HEADERS_ONCE(wchar.h wctype.h)
15 AC_CHECK_FUNCS_ONCE(isascii iswprint mbsinit)
16 AC_CHECK_FUNCS(iswcntrl wcwidth)
19 AC_CACHE_CHECK([whether wcwidth is declared], ac_cv_have_decl_wcwidth,
21 /* AIX 3.2.5 declares wcwidth in <string.h>. */
30 char *p = (char *) wcwidth;
32 ], ac_cv_have_decl_wcwidth=yes, ac_cv_have_decl_wcwidth=no)])
33 if test $ac_cv_have_decl_wcwidth = yes; then
38 AC_DEFINE_UNQUOTED(HAVE_DECL_WCWIDTH, $ac_val,
39 [Define to 1 if you have the declaration of wcwidth(), and to 0 otherwise.])
41 dnl UnixWare 7.1.1 <wchar.h> has a declaration of a function mbswidth()
42 dnl that clashes with ours.
43 AC_CACHE_CHECK([whether mbswidth is declared in <wchar.h>],
44 ac_cv_have_decl_mbswidth,
50 char *p = (char *) mbswidth;
51 ], ac_cv_have_decl_mbswidth=yes, ac_cv_have_decl_mbswidth=no)])
52 if test $ac_cv_have_decl_mbswidth = yes; then
57 AC_DEFINE_UNQUOTED(HAVE_DECL_MBSWIDTH_IN_WCHAR_H, $ac_val,
58 [Define to 1 if you have a declaration of mbswidth() in <wchar.h>, and to 0 otherwise.])