From owner-freebsd-arch  Mon Feb 19  4:16:23 2001
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To: Warner Losh <imp@harmony.village.org>
Cc: arch@freebsd.org, mckay@thehub.com.au
Subject: Re: The whole libc thing. 
References: <20010216161948.B70642@gsmx07.alcatel.com.au> <200102160225.f1G2PFw09227@hak.lan.Awfulhak.org> <200102160317.f1G3HqE26659@billy-club.village.org> <200102170638.f1H6ckW84622@harmony.village.org>
In-Reply-To: <200102170638.f1H6ckW84622@harmony.village.org>
    from Warner Losh at "Sat, 17 Feb 2001 06:38:46 +0000"
Date: Mon, 19 Feb 2001 22:17:49 +1000
From: Stephen McKay <mckay@thehub.com.au>
Sender: owner-freebsd-arch@FreeBSD.ORG
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On Saturday, 17th February 2001, Warner Losh wrote:

>Case 3.  I've installed a port that installs libfred.so.3 from 4.2
>release.  It contains __sF references.  I have a binary (say barney)
>that links libfred.so.3 and libc.so.4.  Things work now.  I rebuild
>the world.  Things still work because neither of the above has
>changed.  Now let's say I want to build wilma that depends on libfred.
>When wilma is built, it will fail to run because it links against
>libfred.so.3 and libc.so.5.20010220.  This libc doesn't have __sF, so
>it will fail at link time or run time.  This is easy to fix.  Just
>rebuild the port tht produced libfred.so.3.  A new libfred.so.3 is
>installed.  wilma will now run (maybe after being rebuilt).  barney
>will also still run because it gets all the symbols it needs
>(including the new libfred.so.3).

Doesn't barney die due to unresolved references to __stdout (etc) from
the recompiled libfred.so.3?  It only has the old libc.so.4 to help it.
Or are you proposing to regenerate all libc.so.* back to the ELF
transition?  I am still confused, and still concerned, and still
think a global major version bump is unavoidable.

Stephen.

PS You might have to cc mckay@freebsd.org to be sure to reach me.


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