[boost] b2 --exec-prefix=...

Subject: [boost] b2 --exec-prefix=...
From: Peter Dimov (lists_at_[hidden])
Date: 2018-12-19 16:13:57

Our "b2 --help" documentation says

--exec-prefix=<EPREFIX> Install architecture dependent files here.
                        Default: <PREFIX>

--libdir=<LIBDIR>       Install library files here.
                        Default: <EPREFIX>/lib

and bootstrap.sh also supports --exec-prefix and when given, records it in 
project-config.jam.

But it doesn't work and has never worked. Only --prefix is 
honored, --exec-prefix is simply ignored.

I think that we should bring the documentation and the actual behavior in 
sync, either by making --exec-prefix work as documented, or removing it from 
the documentation.

Which one should we do? Comments?