To: David Brownlee <email@example.com>
From: Alan Barrett <firstname.lastname@example.org>
Date: 08/10/2000 19:00:56
On Thu, 10 Aug 2000, David Brownlee wrote:
> excluding postfix (or anything else) in a build:
> It would be nice to fix this in a generic way - any
> volunteers? One idea would be to have a SUBDIR_EXCLUDE
> variable. If set, bsd.subdir.mk would run through SUBDIR
> and remove anything in SUBDIR_EXCLUDE. You would only pay
> the extra processing cost if SUBDIR_EXCLUDE were set, but
> it would make it easier to produce 'cut down' builds.
FreeBSD's bsd.subdir.mk has an interesting solution to this
problem. You set up a parallel directory tree in which you
store files that can override SUBDIRS for the source tree.
# SUBDIR_CHANGE A directory-tree that contains overrides for
# corresponding build subdirs.
# Each override is a file containing one subdirname per line:
# 'subdirlist' is a pure override
# 'subdirdrop' drops directories from the build
# 'subdiradd' adds directories to the build
--apb (Alan Barrett)