[Boost-build] long paths on windows

From: David Abrahams (dave_at_[hidden])
Date: 2007-01-12 12:59:53

In trying to set up testing on 64-bit windows I had to specify
"address-model=64 instruction-set=opteron", which ended up blowing by
the 256-character path limit on windows.  *Clearly*, going through the
windows shell to execute build actions is untenable in the long run
(another reason to switch to something like Scons as the build layer
for BB).  However, for the short run I implemented a command-line
option that abbreviates all property names when they're converted into
path elements.  If you add --abbreviate-paths to your command line, 

  debug\address-model-64\instruction-set-opteron\threading-multi

becomes:

  dbg\adrs-mdl-64\instr-set-optrn\thrd-mlt

Enjoy,

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com