Patch mostly from Reece H. Dunn Hacks in target.jam by myself. [SVN r31928]
@@ -1 +1 @@
-Subproject commit e8b3e6c725b9cb66b1e0e2b7b733963cc27d1194
+Subproject commit 7247b1f143341c47035f29e911b1e6f1131acf63