2 dnl Copyright (C) 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 AC_DEFUN([gl_FUNC_WCWIDTH],
9 dnl Persuade glibc <wchar.h> to declare wcwidth().
10 AC_REQUIRE([AC_GNU_SOURCE])
12 AC_REQUIRE([AC_C_INLINE])
13 AC_REQUIRE([gt_TYPE_WCHAR_T])
15 AC_CHECK_HEADERS_ONCE([wchar.h wctype.h])
16 AC_CHECK_FUNCS_ONCE([iswprint wcwidth])
18 AC_CHECK_DECLS([wcwidth], [], [], [
19 /* AIX 3.2.5 declares wcwidth in <string.h>. */