can distutils build simultaneously on two architectures?

[Skip Montanaro]

Can I safely execute the standard distutils command

    python setup.py build

simultaneously on two different architectures (Solaris and Linux in this
case) without fear of clashing?  I know about the build/{temp,lib}*
directories for compiling and linking C/Fortran code.  What about the
directories containing .py[co] files?  Does any sort of locking take place?

-- 
Skip Montanaro
skip at pobox.com