1 dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
3 dnl Copyright (C) 2006 Free Software Foundation, Inc.
4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it,
6 dnl with or without modifications, as long as this notice is preserved.
8 dnl Written by Paul Eggert.
10 AC_DEFUN([gl_WCTYPE_H],
12 AC_CHECK_FUNCS_ONCE([iswcntrl])
13 AC_CHECK_HEADERS_ONCE([wctype.h])
14 AC_REQUIRE([AC_C_INLINE])
16 AC_REQUIRE([gt_TYPE_WINT_T])
17 AC_SUBST([HAVE_WINT_T])
20 if test $ac_cv_header_wctype_h = yes; then
21 if test "$ac_cv_func_iswcntrl" = yes; then
23 ABSOLUTE_WCTYPE_H=\"does/not/matter.h\"
25 gl_ABSOLUTE_HEADER([wctype.h])
26 ABSOLUTE_WCTYPE_H=\"$gl_cv_absolute_wctype_h\"
30 ABSOLUTE_WCTYPE_H=\"no/such/file/wctype.h\"
33 AC_SUBST([ABSOLUTE_WCTYPE_H])
34 AC_SUBST([HAVE_WCTYPE_H])