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Re: default TOOLDIR
On Fri, 24 Oct 2008, David Holland wrote:
> On Thu, Oct 23, 2008 at 07:16:30PM +0200, Alan Barrett wrote:
> > > At the second build, we already have /usr/src/obj
> > > because the first build has created it.
> > If build.sh could figure out the name of the top level obj dir, then it
> > could just create it, and not have this difference between the first and
> > second runs.
> It shouldn't need to. It should be able to just start out by doing
> "make obj-here", where obj-here is the non-recursing portion of the
> obj target. Right now this portion isn't separately addressable, but
> that should be relatively easy to adjust in bsd.obj.mk.
I thought about adding a top-obj target to src/Makefile, but I couldn't
see a use for it. Supposing we did have such a target, and changed the
top level make build to do
make tools # build and install
make everything else
how do you see the extra "make top-obj" step as actually helping?
The reason I don't think it would help is that,
when MAKEOBJDIR or MAKEOBJDIRPREFIX is not set:
the existence or nonexistence of the top level obj dir has no effect
on the choice of obj dir for any other source directory (so the choice
of obj dir for src/tools is unaffected by the difference between an
early make top-obj and a later recursive "make obj");
and when MAKEOBJDIR or MAKEOBJDIRPREFIX is set:
the top level obj directory has to exist already (so make top-obj
would do nothing), or else bsd.obj.mk gives an error (so make top-obj
will simply cause the error to occur a little earlier than otherwise).
What have I missed?
--apb (Alan Barrett)
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