Index: tools/build/v2/tools/builtin.jam
===================================================================
RCS file: /cvsroot/boost/boost/tools/build/v2/tools/builtin.jam,v
retrieving revision 1.189.2.8
diff -u -r1.189.2.8 builtin.jam
--- tools/build/v2/tools/builtin.jam	15 Mar 2007 04:02:24 -0000	1.189.2.8
+++ tools/build/v2/tools/builtin.jam	25 May 2007 20:20:08 -0000
@@ -205,6 +205,11 @@
     power
     # MIPS/SGI
     mips1 mips2 mips3 mips4 mips32 mips32r2 mips64
+    # Combined architectures for platforms/toolsets that support
+    # building for multiple architectures at once. "combined"
+    # would be the default multi-arch for the toolset.
+    combined
+    combined-x86-power
     #
     : propagated optional ;