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Message-ID: <39502851.5F791E53@redhat.co.uk>
Date: Wed, 21 Jun 2000 03:28:33 +0100
From: Jonathan Larmour <jlarmour AT redhat DOT co DOT uk>
Organization: Red Hat UK Ltd.
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To: DJ Delorie <dj AT delorie DOT com>
CC: cygwin AT sourceware DOT cygnus DOT com
Subject: Re: setup-1_48
References: <200006202124 DOT WAA25945 AT murgh DOT cygnus DOT co DOT uk> <200006210211 DOT WAA27870 AT envy DOT delorie DOT com>
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DJ Delorie wrote:
> 
> Setup will check the DLL version (timestamp?) of cygwin1.dll to
> determine if it needs to upgrade or not (to accomodate snapshots).
> Not so for the other packages.  The ability to track what *is*
> installed vs what *should* be installed has been an interesting
> challenge :-)

Yeah, but setup.exe does (did?) do this better. It fills in the Installed
Components bits of the registry and uses that to decide whether to update,
i.e.:

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Installed
Components\C:/cygwin
  (default) = `20000517'
  bash = `0002.0004.0001'
  binutils = `19990818.0002'
  bison = `0000'
  byacc = `0000'
  bzip = `0000'
  clear = `0001.0000'
[snip rest]

It may be imprecise, but it's better than nothing surely?

Jifl
-- 
Red Hat, 35 Cambridge Place, Cambridge, UK. CB2 1NS  Tel: +44 (1223) 728762
"Plan to be spontaneous tomorrow."  ||  These opinions are all my own fault

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