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Message-ID: <53CD047B.7080104@marino.st>
Date: Mon, 21 Jul 2014 14:15:55 +0200
From: John Marino <freebsd.contact@marino.st>
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To: Tijl Coosemans <tijl@FreeBSD.org>
Subject: Re: svn commit: r362304 - head/x11-toolkits/pango
References: <201407200815.s6K8FG8b003096@svn.freebsd.org>	<20140720132259.156d687e@kalimero.tijl.coosemans.org>	<53CBA770.2010409@marino.st>	<20140720113124.GD26778@ivaldir.etoilebsd.net>	<20140720165256.1f4d5d07@kalimero.tijl.coosemans.org>	<53CBF2D7.4070005@marino.st>	<20140721013342.6c17ecdc@kalimero.tijl.coosemans.org>	<53CCABFA.7090202@marino.st>	<20140721121214.1d1f3ef5@kalimero.tijl.coosemans.org>	<53CCF19B.3060906@marino.st>
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Cc: svn-ports-head@freebsd.org, kwm@FreeBSD.org,
 Baptiste Daroussin <bapt@FreeBSD.org>, svn-ports-all@freebsd.org,
 marino@freebsd.org, ports-committers@freebsd.org
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On 7/21/2014 13:26, Tijl Coosemans wrote:
> On Mon, 21 Jul 2014 12:55:23 +0200 John Marino wrote:
>> Everything that uses a pango function that has a libm symbol must also
>> link with libm.
> 
> This is a completely false statement.  If X links to Y and Y uses Z
> symbols, you do not have to link X with Z.  Y links with Z and that is
> enough.  Otherwise X would have to link with its entire dependency
> tree.

If the linker doesn't follow Y's link to Z, how is it supposed to
resolve Z references?  so yes, you do have to link X with Z -- that's
what explicit linking requires.

Following indirect links (like your Y -> Z) example is the original ld
behavior.  The latest binutils linkers don't do this be default.  You
either had to pass a flag to change how it's built during configuration
(or maybe patch the linker, not sure) to restore the original behavior.

John