Hi Steven, I applied the patch you sent me, and ran the following command line:

b2 --toolset=msvc-10.0 stage --debug-configuration

The resulting debug log is attached, I do find the fact it appears to be configuring msvc-12.0 before 10.0?
Could the issue possibly result from some confusion between compilers? I have msvc10 -> msvc12 installed concurrently.

On 2013-10-30 18:03, Steven Watanabe wrote:

There are a few things that might help track this down:
a) run b2 with --debug-configuration
b) apply the attached patch, which should give more
   context for the error.