Add this option to vacpp when building bjam (-bmaxdata:0x40000000).

This option increases the amount of heap / stack space available
to bjam when it runs.  By default on IBM SP2 clusters, the available
stack is limited to 256 Mb which is insufficient for building larger
applications.

-bmaxdata=<num>
  Sets the maximum size of the area shared by the
  static data (both initialized and uninitialized)
  and the heap to <num> bytes.  The default is
  -bmaxdata=0.


[SVN r35323]

tools/build

@@ -1 +1 @@
-Subproject commit 8fa3e7630493b6832248a2eeeabac4aeffcd7352
+Subproject commit 79047105e6cf67a6ecf570f2c55902b0535099a4