New module 'iswctype'. * modules/iswctype: New file. * lib/wctype.in.h (iswctype): New declaration. * lib/iswctype.c: New file. * lib/iswctype-impl.h: New file. * m4/iswctype.m4: New file. * m4/wctype_h.m4 (gl_WCTYPE_H): Test whether iswctype is declared. (gl_WCTYPE_H_DEFAULTS): Initialize GNULIB_ISWCTYPE. * modules/wctype-h (Makefile.am): Substitute GNULIB_ISWCTYPE. * tests/test-wctype-h-c++.cc: Test the declaration of iswctype. * doc/posix-functions/iswctype.texi: Mention the new module and the HP-UX 11.00 problem.

# iswctype.m4 serial 1
dnl Copyright (C) 2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

AC_DEFUN([gl_FUNC_ISWCTYPE],
[
  AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
  AC_REQUIRE([gl_WCTYPE_H])
  if test $HAVE_WCTYPE_T = 0; then
    AC_LIBOBJ([iswctype])
  fi
])