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From: Ade Lovett <ade@FreeBSD.org>
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Date: Mon, 8 Nov 2010 17:22:20 -0600
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To: Baptiste Daroussin <bapt@freebsd.org>
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Subject: Re: [PATCH] update to the latest libedit version and remove
	libreadline deps
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On Nov 08, 2010, at 09:21 , Baptiste Daroussin wrote:
> We also have to think a way to update ports to use devel/readline
> before breaking lot's of them removing libreadline from base. But I
> have no idea is there are good procedures for that purpose.

Easiest solution would be something along the lines of=20

(1) adding the following to ports/Mk/bsd.port.mk

.if defined(USE_READLINE)
. if ${OSVERSION} >=3D (whatever the number is)
LIB_DEPENDS+=3D readline:${PORTSDIR}/devel/readline
# other hacks for CFLAGS, LDFLAGS, etc.
. endif
.endif


(2) creating a suitable binary world tarball with the libreadline not =
present in base

(3) hand (1) and (2) over to portmgr@ for a 9-i386-exp run, see what =
breaks, patch ports accordingly by adding USE_READLINE to the Makefile, =
rinse, repeat, commit.

Have fun.

PS:  Don't forget the documentation of the USE_READLINE knob
PPS: I wouldn't be expecting much to happen here this side of the =
upcoming 7.x/8.x releases, since it's going to be relatively invasive =
work, and will most likely need repeated package building runs.

-aDe