Hack for physfs_rb install.

Makefile.am.newautomake

@@ -142,4 +142,5 @@ dist-hook:
 	echo "Docs are generated with the program "Doxygen" (http://www.doxygen.org/)," >> $(distdir)/docs/README
 	echo " or can be read online at http://icculus.org/physfs/docs/" >> $(distdir)/docs/README
 	echo >> $(distdir)/docs/README
+	rm -rf `find $(distdir)/extras/physfs_rb -name "CVS" -type d`