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Date:	Mon, 3 Nov 2014 17:17:00 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: Setup 2.774 texlive postinstall takes 10+ hours
Message-ID:	<20141103161700.GC28636@calimero.vinschen.de>
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On Nov  3 15:52, Corinna Vinschen wrote:
> On Nov  3 07:43, Ken Brown wrote:
> > On 11/3/2014 5:25 AM, Corinna Vinschen wrote:
> > >On Nov  2 13:02, Ken Brown wrote:
> > >>On 10/24/2014 3:11 AM, Don MacDougall wrote:
> > >>>Can't fork, trying again in 5 seconds at /usr/bin/updmap line 59.
> > >>>        7 [main] perl 8088 child_info_fork::abort: unable to remap F=
cntl.dll
> > >>>to same address as parent (0x2E0000) - try running rebaseall
> > >>
> > >>The problem is that many of the texlive postinstall scripts run perl
> > >>scripts, and these failed as above because rebaseall needed to be run=
.  I
> > >>guess this problem will occur whenever perl and texlive are installed
> > >>simultaneously.
> > >>
> > >>I'm not sure what the solution is.  Would it be hard to tweak setup.e=
xe so
> > >>that it runs the autorebase postinstall script before running any oth=
ers?
> > >>Or would this be a bad idea for other reasons?
> > >
> > >Off the top of my head I don't know how hard that would be, but it
> > >doesn't sound like an especially bad idea to me.  Au contraire.
> > >
> > >The only reasons not to do that would be if an installer script would
> > >move DLLs around (Do we have that?  I hope not) or if there's a simpler
> > >solution.
> > >
> > >One thing we could test is if we can't get away without tweaking
> > >setup.exe, by changing the dependencies only.  Right now _autorebase
> > >requires rebase and dash packages.  Both are in Base anyway, but they
> > >pull in more dependencies which result in something like a rat tail of
> > >dependencies.  So I'm wondering if tweaking _autorebase' setup.hint fi=
le
> > >like this:
> >=20
> > It's worth a try.

I changed that now on sourceware, but please keep in mind that this
doesn't solve all problems.  Assuming you update a few packages and then
start setup again and install some more packages, then the version
number of the _autorebase package hasn't changed and it won't be started
by the second setup run.  Only if a package gets updated which comes
with DLLs, the _autorebase version number is bumped on the server and
only then it will be started by setup anew.  Same thing for
_update-info-dir, but with minor consequences.

In theory, we could need a solution which is built into setup, and which
makes setup re-run the _autorebase script every time a package with DLLs
is updated or installed.  Analog for _update-info-dir.  The dependency
thingy is fine in upset, but the logic needs some support on the client
side it seems.

I would not be too unhappy if somebody would like to take a stab at
setup's code for this...


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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