Bug#471391: closed by Sune Vuorela <debian@pusling.com> (Re: Bug#471391: symbol lookup error: /usr/lib/libkdecore.so.4: undefined symbol: stat64)

[Dan Merillat <dan@merillat.org>]

Debian Bug Tracking System wrote:
> This is an automatic notification regarding your Bug report
> which was filed against the kdelibs4c2a package:
>
> #471391: symbol lookup error: /usr/lib/libkdecore.so.4: undefined symbol: stat64
>
> It has been closed by Sune Vuorela <debian@pusling.com>.
>
> Their explanation is attached below along with your original report.
> If this explanation is unsatisfactory and you have not received a
> better one in a separate message then please contact Sune Vuorela <debian@pusling.com> by
> replying to this email.
>
>
>
>
> ------------------------------------------------------------------------
>
> Subject:
> Re: Bug#471391: symbol lookup error: /usr/lib/libkdecore.so.4: undefined 
> symbol: stat64
> From:
> Sune Vuorela <debian@pusling.com>
> Date:
> Wed, 19 Mar 2008 00:59:12 +0100
> To:
> 471391-done@bugs.debian.org
>
> To:
> 471391-done@bugs.debian.org
>
>
> On Monday 17 March 2008, Dan Merillat wrote:
> > Package: kdelibs4c2a
> > Version: 4:3.5.9.dfsg.1-2
> > Severity: grave
> >
> > All KDE linked packages are unusable - they all fail with undefined symbol:
> > stat64.
> >
> > 2008-03-17 17:32:41 upgrade kdelibs4c2a 4:3.5.8.dfsg.1-4 4:3.5.9.dfsg.1-2
> >
> > previous version worked, new fails.
>
> No. not related to that upgrade. But this version is broken:
>
> > ii  libqt3-mt    3:3.3.8b-1         Qt GUI Library (Threaded runtime v  

Please explain?

Before upgrade:
ii  kdelibs4c2a    3.5.8.dfsg.1-7 core libraries and binaries for all 
KDE appl
harik@mutley:~/cleanup$ nm -D /usr/lib/libkdecore.so.4 | grep stat64
                 U __fxstat64
                 U __lxstat64
                 U __xstat64

harik@mutley:~$ nm -D /lib/libc.so.6 | grep stat64
00000000000c0550 T __fxstat64
00000000000c05b0 T __lxstat64
00000000000c04f0 T __xstat64

Same file in 3.5.9.dfsg.1-2:

harik@mutley:~/t/usr/lib$ nm -D libkdecore.so.4 | grep stat64
                 U fstat64
                 U lstat64
                 U stat64

harik@mutley:~/t/usr/lib$ nm -D /usr/lib/libqt-mt.so.3 | grep stat64
                 U __fxstat64
                 U __lxstat64
                 U __xstat64
0000000000644010 T fstat64
0000000000644020 T lstat64
0000000000644030 T stat64

So at the same time libqt3-mt quit providing weak symbol aliases, 
libkdecore.so.4 quit using the glibc symbols directly.   That's why 
going back to 3.5.8.dfsg.1-7 fixes the problem even without upgrading 
libqt3-mt.

Which leads to the question - what happened in both these packages?