Re: [RFC] Disable packaged-staging for perl-native

[Roman I Khimov <roman@khimov.ru>]

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В сообщении от Четверг 12 августа 2010 21:12:22 автор Tom Rini написал:
> Tom Rini wrote:
> > Roman I Khimov wrote:
> >> В сообщении от Среда 28 июля 2010 03:45:21 автор Tom Rini написал:
> >>> I'd like to disable packaged-staging for perl-native.  The problem here
> >>> comes from a number of things that happen.  Some of these can only
> >>> happen in combination with packaged-staging but others I believe could
> >>> happen today.  The problem itself is that if we have perl-native
> >>> available from packaged-staging it can suddenly exist very early.  What
> >>> this means in practical terms is that now we're trying to generate say
> >>> pod2man.pl from pod2man.pl.in and @perl@ is expanded to something
> >>> beyond the "#!" mechanic length limit and recipes start failing to
> >>> build (fixable by changing pod2man.pl.in to use /usr/bin/env perl (and
> >>> if it had a -w changing to Use warnings: or whatever the perl is)).
> >>
> >> So the problem really is that we have perl in
> >> /very-very-long-path/perl? IMO /usr/bin/env change would be better in
> >> that case.
> >
> > The most common case is that one, yes.  I'm open to suggestions on
> > catching and fixing these problems ahead of time but the issue is we're
> > talking about for example wget which has no dependency on perl-native.
> 
> As I go over the list of stuff to get a "1.0" of relocatable packaged
> staging done, ping?  Blacklist perl-native for now or someone suggest
> how to catch and fixup all the cases to be /usr/bin/env perl ?  iirc
> just setting ac_cv...="/usr/bin/env perl" won't do it since we end up
> trying to invoke /usr/bin/env perl -w sometimes and that's an error.

Well, IMO, blacklisting just doesn't fix the problem here if the problem is 
/long/long/long/path/to/perl. Because whether from packaged staging or from 
really built perl-native the perl will be there anyway and so is the chance of 
breakage.

Maybe some automatic

$ sed -ri "s,#!.\s*${STAGING_NATIVE_BINDIR}/perl,#!/usr/bin/env perl,"

somewhere (and probably something more hacky to only catch the first line)?

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