Patch: incomplete 'make clean' in liblunicode  (ITS#1791)

In liblunicode, 'make clean' and 'make distclean' do not remove
the symlinks ucdata.h and ure.h.


diff -u2 -r libraries/liblunicode/Makefile.in~ libraries/liblunicode/Makefile.in
--- libraries/liblunicode/Makefile.in~	Sat Apr 20 13:26:34 2002
+++ libraries/liblunicode/Makefile.in	Fri May  3 08:44:14 2002
@@ -43,5 +43,5 @@
 
 clean-local: FORCE
-	@$(RM) *.dat .links
+	@$(RM) *.dat .links $(XXHEADERS)
 
 depend-common: .links