Re: Bug#694360: libowfat-dietlibc-dev: missing Breaks+Replaces: libowfat-dev (<< 0.28-3)

[Roland Stigge <stigge@antcom.de>]

Hi,

please unblock and take libowfat 0.28-6 (just uploaded) from
unstable for wheezy. #694360 is fixed just as proposed by Andreas.

Thanks,

Roland


On 25/11/12 21:17, Andreas Beckmann wrote:
> Package: libowfat-dietlibc-dev
> Version: 0.28-3
> Severity: serious
> User: treinen@debian.org
> Usertags: edos-file-overwrite
> 
> Architecture: amd64
> Distribution: squeeze->wheezy (partial) upgrade
> 
> Hi,
> 
> automatic installation tests of packages that share a file and at the
> same time do not conflict by their package dependency relationships has
> detected the following problem:
> 
>   Selecting previously deselected package dietlibc-dev.
>   (Reading database ... 6286 files and directories currently installed.)
>   Unpacking dietlibc-dev (from .../dietlibc-dev_0.32-5.1_amd64.deb) ...
>   Selecting previously deselected package libowfat-dev.
>   Unpacking libowfat-dev (from .../libowfat-dev_0.28-2_amd64.deb) ...
>   Setting up dietlibc-dev (0.32-5.1) ...
>   Setting up libowfat-dev (0.28-2) ...
> 
>   Selecting previously deselected package libowfat-dietlibc-dev.
>   (Reading database ... 6978 files and directories currently installed.)
>   Unpacking libowfat-dietlibc-dev (from .../libowfat-dietlibc-dev_0.28-5_amd64.deb) ...
>   dpkg: error processing /var/cache/apt/archives/libowfat-dietlibc-dev_0.28-5_amd64.deb (--unpack):
>    trying to overwrite '/usr/lib/diet/lib/libowfat.a', which is also in package libowfat-dev 0.28-2
> 
> 
> This is a serious bug as it makes installation/upgrade fail, and
> violates sections 7.6.1 and 10.1 of the policy.
> 
> As this problem can be demonstrated during partial upgrades from squeeze
> to wheezy (but not within squeeze or wheezy itself), this indicates a
> missing or insufficiently versioned Replaces+Breaks relationship.
> But since this particular upgrade ordering is not forbidden by any
> dependency relationship, it is possible that apt (or $PACKAGE_MANAGER)
> will use this erroneus path on squeeze->wheezy upgrades.
> 
> Here is a list of files that are known to be shared by both packages
> (according to the Contents files for squeeze and wheezy on amd64, which
> may be slightly out of sync):
> 
> 	usr/include/diet/CAS.h
> 	usr/include/diet/array.h
> 	usr/include/diet/buffer.h
> 	usr/include/diet/byte.h
> 	usr/include/diet/case.h
> 	usr/include/diet/cdb.h
> 	usr/include/diet/cdb_make.h
> 	usr/include/diet/dns.h
> 	usr/include/diet/errmsg.h
> 	usr/include/diet/errmsg_int.h
> 	usr/include/diet/fmt.h
> 	usr/include/diet/havealloca.h
> 	usr/include/diet/havebsdsf.h
> 	usr/include/diet/havedevpoll.h
> 	usr/include/diet/haveepoll.h
> 	usr/include/diet/haveinline.h
> 	usr/include/diet/haveip6.h
> 	usr/include/diet/havekqueue.h
> 	usr/include/diet/haven2i.h
> 	usr/include/diet/havescope.h
> 	usr/include/diet/havesendfile.h
> 	usr/include/diet/havesigio.h
> 	usr/include/diet/havesl.h
> 	usr/include/diet/iarray.h
> 	usr/include/diet/io.h
> 	usr/include/diet/io_internal.h
> 	usr/include/diet/iob.h
> 	usr/include/diet/iob_internal.h
> 	usr/include/diet/iopause.h
> 	usr/include/diet/ip4.h
> 	usr/include/diet/ip6.h
> 	usr/include/diet/likely.h
> 	usr/include/diet/mmap.h
> 	usr/include/diet/ndelay.h
> 	usr/include/diet/open.h
> 	usr/include/diet/openreadclose.h
> 	usr/include/diet/rangecheck.h
> 	usr/include/diet/readclose.h
> 	usr/include/diet/safemult.h
> 	usr/include/diet/scan.h
> 	usr/include/diet/select.h
> 	usr/include/diet/socket.h
> 	usr/include/diet/str.h
> 	usr/include/diet/stralloc.h
> 	usr/include/diet/tai.h
> 	usr/include/diet/taia.h
> 	usr/include/diet/textcode.h
> 	usr/include/diet/uint16.h
> 	usr/include/diet/uint32.h
> 	usr/include/diet/uint64.h
> 	usr/include/diet/va_narg.h
> 	usr/include/diet/windoze.h
> 	usr/lib/diet/lib/libowfat.a
> 
> The dietlibc parts were moved to a separate package recently:
> 
>   libowfat (0.28-3) unstable; urgency=low 
>    * Build two flavors of libowfat, one linked against glibc, the other
>      against dietlibc. (Closes: #461150)
> 
> 
> The following relationships are currently defined:
> 
>   Package:   libowfat-dietlibc-dev
>   Conflicts: libdjbdns1-dev
>   Breaks:    n/a
>   Replaces:  n/a
> 
> The following relationships should be added for a clean takeover of
> these files
> (http://www.debian.org/doc/debian-policy/ch-relationships.html#s-replaces):
> 
>   Package:  libowfat-dietlibc-dev
>   Breaks:   libowfat-dev (<< 0.28-3)
>   Replaces: libowfat-dev (<< 0.28-3)
> 
> 
> Cheers,
> 
> Andreas
> 
> PS: for more information about the detection of file overwrite errors
> of this kind see http://edos.debian.net/file-overwrites/.