tools/

	* pch.jam: (pch-generator.run): Really fail when
	not used at top-level.


[SVN r35544]

tools/build

@@ -1 +1 @@
-Subproject commit 0ebd162541bc1e1203dd041281ccd838ec65c1d8
+Subproject commit fe40b02b29b07d1e0d2b89cf6875c73ad461e0c4