Bugzilla Bug 56597

When I try to emerge net-p2p/mldonkey-2.5.16-r4, the emerge fails. See
attachment for the full build log.

Reproducible: Always
Steps to Reproduce:
1.
2.
3.

Created an attachment (id=35106) [edit]
Build log

Created an attachment (id=35107) [edit]
Portage info

Created an attachment (id=35108) [edit]
List of the installed ebuilds

2 things- when you upgraded to ocaml 3.07, did you run the rebuild script
included with the update? Could you also please try the latest mldonkey-2.5.16
revision in portage?

1) rebuild script -- yes, I did. It showed that it has nothing to do, which is
odd, because I have mldonkey installed.
I'll check another revision in an hour or so. However, it's a last ebuild
marked stable, so it'll ask me to downgrade afterwards.

The last 2.4.16-r7 fails with exactly the same error. 2.4.21-r2 is fails with
another error, which I attach as a new error log.

Created an attachment (id=35172) [edit]
2.5.21 build log

I meant 2.5.16 and 2.5.21, of course.

Some kind soul advised me to re-emerge liblgtk and liblgl. liblgtk failed to
remerge with exactly the same error as mldonkey. liblgl emerged flawlessly, and
then i emerge both liblgtk and mldonkey without any problem. Should I close
this bug or you would rather further investigate on this issue? 

I'd like to investigate further on why lablgl needed to be remerged.
mattam- I seemed to get this bug report after the ocaml upgrade- I wasn't sure if you knew of something that might be causing this?

Lablgl needs to be reemerged (like any other caml library) on compiler updates,
because caml is not binary compatible from version to version. The problem here
is that the rebuilding script did not catch lablgl, which i find bizarre. The
fact that lablgtk failed to rebuild without first upgrading to lablgl is
another instance of the binary incompatibility problem.
Could you try 'reverting' to the moment when you got the compiler merged and
investigate by putting some debug echo's in my rebuild script, or just give us
the output of `qpkg -nc -n -q -I dev-lang/ocaml-3.06` in this configuration ?
I have really no idea of the source of the problem...

Matthieu,
Tell me exactly what to do. You want me to downgrade to the previous version of mldonkey and that's it? Or do I need to downgrade the gcc then downgrade mldonkey?

I meant when you got the ocaml 3.07 compiler merged. Thinking twice, you may
not be able to do so (you'll need to rebuild 3.06, lablgl etc... and 3.07
again), but you can attach your emerge.log so that i can try to reproduce your
installation myself.

*** Bug 57696 has been marked as a duplicate of this bug. ***

Matthieu,
I've attached the emerge.log for mldonkey at the very beginning. Please, let me know what do you want me to provide.

Ok, i've been able to reproduce the problem on another machine and i tracked
down the problem. It is my rebuild script that expected a particular output
from qpkg which it didn't get (it has changed between versions). Now the script
find lablgl and lablgtk as expected (but not mldonkey, i don't know why) and
should be more robust regarding qpkg changes.

*** Bug 58309 has been marked as a duplicate of this bug. ***

*** Bug 58938 has been marked as a duplicate of this bug. ***

The fixed described here (re-merge lablgl and lablgtk) works fine, but this
wasn't drawn to my attention upon upgrading ocaml. should it have been?

The ocaml upgrade should have informed you about the rebuild script which I
fixed one week ago so that it properly reemerges lablgl and lablgtk.

*** Bug 59142 has been marked as a duplicate of this bug. ***

*** Bug 59522 has been marked as a duplicate of this bug. ***

*** Bug 60817 has been marked as a duplicate of this bug. ***

*** Bug 61081 has been marked as a duplicate of this bug. ***

*** Bug 61228 has been marked as a duplicate of this bug. ***

*** Bug 68135 has been marked as a duplicate of this bug. ***

*** Bug 65338 has been marked as a duplicate of this bug. ***

rebulding dev-ml/lablgtk solved the problem for me, but yes... that's ugly, so
this bug can't me marked as FIXED since there are still affected users with no
clues. Perhaps bump up the dev-ml/lablgtk version number to make it rebuild for
all users?

It's resolved. The ocaml bump should have told you to run the ocaml update
script:
sh /usr/portage/dev-lang/ocaml/files/ocaml-rebuild.sh

I wish ocaml could cause a post-compile dependency on the ocaml programs you
have installed. Sadly, it does not. Unless you can think of a better solution,
the rebuild script is the best we have.

*** Bug 72910 has been marked as a duplicate of this bug. ***

*** Bug 78004 has been marked as a duplicate of this bug. ***

*** Bug 133771 has been marked as a duplicate of this bug. ***

*** Bug 134905 has been marked as a duplicate of this bug. ***

*** Bug 137212 has been marked as a duplicate of this bug. ***

*** Bug 142899 has been marked as a duplicate of this bug. ***

*** Bug 127837 has been marked as a duplicate of this bug. ***