Date: Thu, 28 Oct 2004 13:56:52 +0300 From: Peter Pentchev <roam@ringlet.net> To: Dan Strick <strick@covad.net> Cc: freebsd-hackers@FreeBSD.org Subject: Re: questionable feature in FreeBSD pmake Message-ID: <20041028105652.GC975@straylight.m.ringlet.net> In-Reply-To: <20041028105100.GB975@straylight.m.ringlet.net> References: <200410281023.i9SAN27L001781@mist.nodomain> <20041028105100.GB975@straylight.m.ringlet.net>
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On Thu, Oct 28, 2004 at 01:51:00PM +0300, Peter Pentchev wrote:
> On Thu, Oct 28, 2004 at 03:23:02AM -0700, Dan Strick wrote:
> > I just spent a *very* frustrating hour trying to figure out why the
> > FreeBSD make program was invoking all commands to make things in a
> > subdirectory named "obj". I eventually discovered this gem in the
> > make man page:
> [snip]
> > .OBJDIR A path to the directory where the targets are built.
> [snip]
> > 1. ${MAKEOBJDIRPREFIX}/`pwd`
> > 2. ${MAKEOBJDIR}
> > 3. obj.${MACHINE}
> > 4. obj
> > 5. /usr/obj/`pwd`
> >
> > I believe this feature is a real botch because it is magic, unintuitive,
> > and so *exceedingly* easy to invoke by mistake.
>
> Actually, this feature lies at the base of the FreeBSD base system build
> infrastructure, and it is pretty much The Feature that allows us to
> build from read-only and/or NFS-mounted sources shared among wide swarms
> of machines :)
Oh, and let's not forget cross-platform builds, too.
G'luck,
Peter
--
Peter Pentchev roam@ringlet.net roam@cnsys.bg roam@FreeBSD.org
PGP key: http://people.FreeBSD.org/~roam/roam.key.asc
Key fingerprint FDBA FD79 C26F 3C51 C95E DF9E ED18 B68D 1619 4553
If I had finished this sentence,
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