man ranlib
----- Original Message -----
From: "Andrew M Hoerter" <amh@pobox.com>
To: "SLUG List" <slug@nks.net>
Sent: Sunday, September 07, 2003 16:46
Subject: Re: [SLUG] Libraries/Programming Question
>
> On Sun, 7 Sep 2003, Paul M Foster wrote:
>
> > Well, that's bizarre. Actually it works fine without the first -lfl but
> > with the last one. I've heard of having to call libraries in a certain
> > order, but I never grasped why. I see this is a case of it. Thanks.
>
> The reason is that UNIX linkers are dumb. They scan libraries and object
> files in the exact order specified and don't make multiple passes to
> collect all the required symbols.
>
> To avoid this problem most people link in a particular order such as:
>
> myobj.o bla.o foo.o -lapplibrary -lapplibrary2 -lsyslibrary -lsyslibrary2
>
> By ordering objects from "highest level" to "lowest level" dependencies
> will tend to be satisfied properly. Just wait until you have a circular
> dependency at link time, that's when things get really "fun".
>
>
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