questionable feature in FreeBSD pmake

[Peter Pentchev]

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 at ringlet.net    roam at cnsys.bg    roam at FreeBSD.org
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If I had finished this sentence,
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