Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!henry
From: henry@utzoo.UUCP (Henry Spencer)
Newsgroups: comp.arch,comp.unix.wizards,comp.os.misc
Subject: Re: Shared libraries (Was: Re: Big Programs Hurt Performance)
Message-ID: <8650@utzoo.UUCP>
Date: Thu, 24-Sep-87 12:55:30 EDT
Article-I.D.: utzoo.8650
Posted: Thu Sep 24 12:55:30 1987
Date-Received: Thu, 24-Sep-87 12:55:30 EDT
References: <6886@eddie.MIT.EDU) <2501@xanth.UUCP> <2067@sfsup.UUCP>, <2903@phri.UUCP>
Organization: U of Toronto Zoology
Lines: 12

> ... What do I do on a shared
> library system when scanf changes out from under me and breaks my program?

Whisper the magic phrase:  "search paths".  There is no *inherent* reason
why you can't keep multiple versions around and have some way to say "run
this program with the old library, please".  One can even envision doing
it automatically with some sort of date-stamp system:  the loader finds
the newest library version that predates the program, or failing that, the
oldest version remaining.
-- 
"There's a lot more to do in space   |  Henry Spencer @ U of Toronto Zoology
than sending people to Mars." --Bova | {allegra,ihnp4,decvax,utai}!utzoo!henry