[xml/sgml-pkgs] Bug#565823: zlib1g: Breaking ABI? {update-mime-database.real, xsltproc, xmllint} start segfaulting

[Mark Brown]

reassign 565823 libxml2
kthxbye

On 19 Jan 2010, at 00:20, Cyril Brulebois <kibi at debian.org> wrote:

> Package: zlib1g
> Version: 1:1.2.3.5.dfsg-1
> Severity: serious
> Justification: ABI break?
>
> Hi,
>
> context: kfreebsd-* experimental buildds were not properly configured
> and pulled more stuff from experimental than actually needed. We  
> started
> to see many FTBFSes (in particular on kfreebsd-amd64) due to:
> - update-mime-database.real
> - xsltproc
> - xmllint
> which started to segfault, core dump, etc. One can notice all of them
> have a NEEDED on libxml2.so.2, which in turn pulls libz.so.1

This is actually a bug (already filed, I'll merge them later when I  
have a proper network). It is relying on zlib internals which have  
been changed but where never exposed in a header file, much less part  
of the API.

> I'm also able to reproduce this error on sid/(linux-)amd64, by just
> pulling zlib1g from experimental. Before pulling it, this runs fine:
>  sudo update-mime-database.real /usr/share/mime
> After having pulled it, this segfaults.
>
> Sounds like a possible ABI breakage? Since symbols look like okay-ish,
> maybe a signature change? Upstream's diff is quite huge since build
> system changed and so on, so I'll leave that up to you/upstream. ;)
>
> Mraw,
> KiBi.
>
>
>