2 dnl Copyright (C) 2006, 2007 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_WCWIDTH],
9 AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
11 dnl Persuade glibc <wchar.h> to declare wcwidth().
12 AC_REQUIRE([AC_GNU_SOURCE])
14 AC_REQUIRE([gt_TYPE_WCHAR_T])
15 AC_REQUIRE([gt_TYPE_WINT_T])
17 AC_CHECK_HEADERS_ONCE([wchar.h])
18 AC_CHECK_FUNCS_ONCE([wcwidth])
20 AC_CHECK_DECLS([wcwidth], [], [], [
21 /* AIX 3.2.5 declares wcwidth in <string.h>. */
23 /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
25 BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
32 if test $ac_cv_have_decl_wcwidth != yes; then
36 if test $ac_cv_func_wcwidth = no; then
39 if test $REPLACE_WCWIDTH = 1; then
43 if test $REPLACE_WCWIDTH = 1 || test $HAVE_DECL_WCWIDTH = 0; then