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Re: link-order.at problem on Cygwin

From: Ralf Wildenhues
Subject: Re: link-order.at problem on Cygwin
Date: Thu, 22 Sep 2005 08:35:58 +0200
User-agent: Mutt/1.4.1i

Hi Peter,

* Peter Ekberg wrote on Wed, Sep 21, 2005 at 03:33:23PM CEST:
> * Ralf Wildenhues wrote on Tuesday, September 20, 2005 16:20 CEST:
> > * Peter Ekberg wrote on Tue, Sep 20, 2005 at 03:25:01PM CEST:
> > > 
> > > The recent change to bug out when the exit code is non-zero [1]
> > > uncovered a silent failure on Cygwin (an MinGW I suppose) in
> > > the link-order.at test.

> > So this reveals that we are testing something slightly different:
> > we install both liba versions before linking against them.  What we
> > should be doing according to the bug report: link and install the old
> > version, then `$LIBTOOL --mode=clean' the old library, link the new
> > library, link the program, execute the uninstalled, install both,
> > execute again.
> It's not as bad as it seems. Normal operation would be:
> ...
> 6. main_old is executed and terminates with 0 exit code
> 7. main_new is linked against new/lib/liba
> 8. main_new is executed and terminates with 0 exit code
> So the test links with old liba after new liba is installed, that
> is in addition to what you specify. But it doesn't test with
> the uninstalled new liba or the installed main_new.

OK.  I'd still like to eventually make it test what I outlined above
(as that might just uncover another failure).

> > Then we should make sure that, if we undo the patch from Alexandre
> > that was installed, the test fails.  Actually, come to think of it,
> > we should make sure it fails even without the EGREP test.

> I think this patch is less intrusive and more obvious to not
> disrupt the test.

This is obviously better than what we have now.  Please install,
and copy a patch to libtool-patches.  ;-)


>       * tests/link-order.test: Clean up the uninstalled libraries
>       before linking the test executables so that they don't pick
>       up the dlls from the current dir on Cygwin and MinGW.

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