From mboxrd@z Thu Jan  1 00:00:00 1970
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In-Reply-To: <20130325111628.GA5305@polynum.com>
References: <20130323100519.GA3980@polynum.com>
	<2087087D-B83B-43EE-8CA9-D3B578C91938@gmail.com>
	<CAFSF3XMuT558-FP0VnschuOBJEsG8iL6whZ=JFHgWV01Pet-zw@mail.gmail.com>
	<3016266.MVcRYAfMTf@coil> <20130325111628.GA5305@polynum.com>
Date: Mon, 25 Mar 2013 11:55:19 +0000
Message-ID: <CAOw7k5hMETLGKmsyH3VMPr==G9u1HK01BUzzjRnMADLkVdsY4w@mail.gmail.com>
From: Charles Forsyth <charles.forsyth@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Content-Type: multipart/alternative; boundary=f46d0444e97fa5009b04d8be7ad2
Subject: Re: [9fans] mk and transitive dependencies (was: gcc not an option
 for Plan9)
Topicbox-Message-UUID: 348246cc-ead8-11e9-9d60-3106f5b1d025

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On 25 March 2013 11:16, <tlaronde@polynum.com> wrote:

> since the
> linking with libraries is order dependent. And one will need to
> explicitely state that some lib depends on some others for the
> linking (except if the symbols in the library are scanned to detect
> unsatisfied dependencies and a search is done in standard directories
> to find a library satisfying the dependency etc.).
>

the loaders do that using pragma lib:
          The order of search to resolve undefined symbols is to load
          all files and libraries mentioned explicitly on the command
          line, and then to resolve remaining symbols by searching in
          topological order libraries mentioned in header files
          included by files already loaded ...

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<div dir=3D"ltr"><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">=
On 25 March 2013 11:16,  <span dir=3D"ltr">&lt;<a href=3D"mailto:tlaronde@p=
olynum.com" target=3D"_blank">tlaronde@polynum.com</a>&gt;</span> wrote:<br=
><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border=
-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;=
padding-left:1ex">
<div id=3D":vr">since the<br>
linking with libraries is order dependent. And one will need to<br>
explicitely state that some lib depends on some others for the<br>
linking (except if the symbols in the library are scanned to detect<br>
unsatisfied dependencies and a search is done in standard directories<br>
to find a library satisfying the dependency etc.). </div></blockquote></div=
><br>the loaders do that using pragma lib:</div><div class=3D"gmail_extra">=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 The order of search to resolve undefined=
 symbols is to load</div>
<div class=3D"gmail_extra">=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 all files and=
 libraries mentioned explicitly on the command</div><div class=3D"gmail_ext=
ra">=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 line, and then to resolve remaining =
symbols by searching in</div><div class=3D"gmail_extra">
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 topological order libraries mentioned in=
 header files</div><div class=3D"gmail_extra">=C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 included by files already loaded ...</div><div class=3D"gmail_extra"=
><br></div></div>

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