[Boost-build] how to check which assembler is used

Subject: [Boost-build] how to check which assembler is used
From: Oliver Kowalke (oliver.kowalke_at_[hidden])
Date: 2010-11-14 02:40:33

Hi,
how can I check which assembler is used by boost.build.
I try to compile some asm on x64 Windows and I get some errors like 
'undefined symbol : rcx' which seams that the 32bit masm (ml.exe) is 
used instead of 64bit version (ml64.exe).

bjam option '--debug-building' doesn't give me the requested info.

A grep of ml.exe/ml64.exe in the 'tools' subdirectory doesn't give me a hit.

thx,
Oliver