For the last week I've not been able to compile the world. The build process
dies when it attempts to compile 'lib/libpthread/arch/i386/_context_u.S

This seems to be due to the fact that 'genassym.sh' does not correctly 
create
the 'assym.h' file, and so there are #define constants which remain 
un-expanded
to their numeric values.

Has anyone else had this problem, and what is the correction?

Thanks
John Clark