[Boost-build] b2 headers cache

Subject: [Boost-build] b2 headers cache
From: Edward Diener (eldiener_at_[hidden])
Date: 2018-10-25 16:25:06

After moving some headers were moved from parameter to parameter_python 
running 'b2 headers' gives:

error: Cannot create link boost\parameter\aux_\python\invoker.hpp to 
libs\parameter_python\include\boost\parameter\aux_\python\invoker.hpp.
error: Link previously defined to another file, 
libs\parameter\include\boost\parameter\aux_\python\invoker.hpp.

I then precede to delete all symlinks under boost\parameter but running 
'b2 headers' again gives the same error. This suggests that b2 headers 
is cacheing some previously result somewhere. Is there a fix for this ?