Re: introduce OBJMACHINE_ARCH

[christos%astron.com@localhost (Christos Zoulas)]

In article <18817.1481064533%splode.eterna.com.au@localhost>,
matthew green  <mrg%eterna.com.au@localhost> wrote:
>> I would like to keep multiple object directories like obj.evbarm-armeh and
>> evbarm-earmeh etc. Unfortunately this is difficult to do now. Here's a patch
>> that cleans up the existing code and add this feature:
>
>i don't think we need to patch make.  i use this:
>
>setenv  MAKEOBJDIRPREFIX       
>'/var/obj/${MACHINE}${MACHINE_ARCH:N${MACHINE}:C/(.)/-\1/}${ACTIVE_CC:Mclang}
>
>which gives me that feature without any source code changes and
>it works going back to when MAKEOBJDIRPREFIX was added.

- this does not put the objdir in the tree.
- it needs an external environment variable setup which is specific
  for each tree.

christos