Re: -current broken when MAKEOBJDIRPREFIX is set (was: src is on NFS)

On Sun, Jul 19, 2015 at 11:05:48PM -0700, Don Lewis wrote:
> On 19 Jul, O'Connor, Daniel wrote:
> > 
> >> On 19 Jul 2015, at 02:56, Simon J. Gerraty <sjg_at_juniper.net> wrote:
> >> 
> >> O'Connor, Daniel <darius_at_dons.net.au> wrote:
> >>> However, Crochet _does_ build on the NFS client _and_ when the
> >>> source tree isn't in /usr/src which makes this issue very strange
> >>> :-/
> >> 
> >> I've seen similar errors in rescue... (no NFS) though I cannot 
> >> quite recall the cause other than it seems very sensitive
> >> to MAKEOBJDIRPREFIX value.
> > 
> > Yeah the subject is wrong (I just updated it).
> > 
> > I just did a build like so and it worked..
> > env MAKEOBJDIRPREFIX=/src/obj-amd64 make -j 8 buildworld
> > 
> > But this did not..
> > make -j 8 buildworld MAKEOBJDIRPREFIX=/src/obj-amd64
> > 
> > So, it seems MAKEOBJDIRPREFIX only works as an environmental variable
> > - I wonder if there is a way the make system can be changed to warn
> > about that?
> 
> At least it is documented in /usr/share/mk/bsd.obj.mk:
> 
> # MAKEOBJDIRPREFIX  Specifies somewhere other than /usr/obj to root the object
> #               tree.  Note: MAKEOBJDIRPREFIX is an *environment* variable
> #               and works properly only if set as an environment variable,
> #               not as a global or command line variable!
> #
> #               E.g. use `env MAKEOBJDIRPREFIX=/somewhere/obj make'
> 
> Not the most obvious place to look ...

It is documented in build(7) too:

MAKEOBJDIRPREFIX  Defines the prefix for directory names in the tree of
built objects.  Defaults to /usr/obj if not defined.  This variable
should only be set in the environment and not via /etc/make.conf or the
command line.


Regards,
Navdeep