Date: Thu, 6 Nov 2014 14:05:55 +0100 From: Baptiste Daroussin <bapt@freebsd.org> To: "Simon J. Gerraty" <sjg@juniper.net> Cc: Konstantin Belousov <kostikbel@gmail.com>, arch@freebsd.org Subject: Re: Overlinking in base Message-ID: <20141106130555.GP10388@ivaldir.etoilebsd.net> In-Reply-To: <3912.1415233494@chaos> References: <20141105113839.GG10388@ivaldir.etoilebsd.net> <20141105125431.GD53947@kib.kiev.ua> <20141105125931.GJ10388@ivaldir.etoilebsd.net> <20141105133029.GH53947@kib.kiev.ua> <20141105134006.GL10388@ivaldir.etoilebsd.net> <3912.1415233494@chaos>
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On Wed, Nov 05, 2014 at 04:24:54PM -0800, Simon J. Gerraty wrote:
> Baptiste Daroussin <bapt@freebsd.org> wrote:
> > In the second case we could do it via make(1)
> > LIBADD= liba libc libc
> > this will open something like a ${PATHTOTHELIB}/link.mk which will define
> > DYNAMIC_ADD
> > STATIC_ADD
> >
> > And this could be recursive.
>
> We do something like that in the Junos build
>
> prog makefile might have DPLIBS+= ${LIBFOO}
> which is exactly equivalent to
>
> LDADD+= -lfoo
> DPADD+= ${LIBFOO}
>
> but ensures that they stay in sync (not so important now with meta
> mode).
>
> bsd.libnames.mk can then have
>
> DPLIBS_libfoo += ${LIBGOO}
> DPLIBS_libgoo += ${LIBZOO}
>
> All of which is processed by dpadd.mk which you can find in
> contrib/bmake/mk
> Though dpadd.mk ignores DPLIBS_libgoo += ${LIBZOO} if LIBZOO has already
> been added.
>
I'am about to add something based on the following principle:
https://people.freebsd.org/~bapt/plop.diff
With a bit more changes
The version I have now (a bit different from the patch now :)) allows multiple
things:
1/ simplify the Makefile for users:
LIBADD= m archive util
instead of
DPADD= ${LIBM} ${LIBARCHIVE} ${LIBUTIL}
LDADD= -lm -larchive -lutil
2/ ensure dependencies are automatically tracked
For example -lucl needs -lm adding LIBADD= ucl does the magic by itself
3/ allow to build any single binary statically so far I'm able to build
everything is bin sbin usr.bin and usr.sbin statically (which wasn't doable
before)
3/ hides the private/internal lib from the final user
Do more need to say USEPRIVATELIB because I do use a libunbound it is automatic
regards,
Bapt
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