1 dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
3 dnl Copyright (C) 2006, 2007 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.
12 AC_DEFUN([gl_WCTYPE_H],
14 AC_CHECK_FUNCS_ONCE([iswcntrl])
15 AC_CHECK_HEADERS_ONCE([wctype.h])
16 AC_REQUIRE([AC_C_INLINE])
18 AC_REQUIRE([gt_TYPE_WINT_T])
21 if test $ac_cv_header_wctype_h = yes; then
22 if test "$ac_cv_func_iswcntrl" = yes; then
25 dnl Compute ABSOLUTE_WCTYPE_H even if WCTYPE_H is empty,
26 dnl for the benefit of builds from non-distclean directories.
27 gl_ABSOLUTE_HEADER([wctype.h])
28 ABSOLUTE_WCTYPE_H=\"$gl_cv_absolute_wctype_h\"
31 ABSOLUTE_WCTYPE_H=\"no/such/file/wctype.h\"
34 AC_SUBST([ABSOLUTE_WCTYPE_H])
35 AC_SUBST([HAVE_WCTYPE_H])