Debian Bug report logs - #689092
libpng12-dev is not Multi-Arch compatible

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Francois Gouget <fgouget@free.fr>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: libpng12-dev is not Multi-Arch compatible

Date: Sat, 29 Sep 2012 03:09:00 +0200

Package: libpng12-dev
Version: 1.2.49-1
Severity: normal

Dear Maintainer,

The amd64 version conflicts with the i386 one which makes it impossible to install both. As a result the /usr/lib/i386-linux-gnu/libpng12.so symbolic link is missing so that developping 32bit applications (e.g. Wine) using this library is impossible on a 64bit system.

Furthermore this development package does not seem to be multiarch aware as there is no Multi-Arch field.

My understanding is that as long as there are no architecture-dependent headers there is no obstacle (i.e. no toolchain issue) to tagging the development package as 'Multi-Arch: same'. The symbolic link (and any static libraries) should be no issue as they are already in the architecture-qualified folders.

A good model for this appears to be the libx11-dev package.

The /usr/bin/libpng12-config binary is going to cause trouble though :-(


-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.2.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages libpng12-dev depends on:
ii  libpng12-0  1.2.49-1
ii  zlib1g-dev  1:1.2.7.dfsg-13

libpng12-dev recommends no packages.

libpng12-dev suggests no packages.

-- no debconf information

Message #10 received at 689092@bugs.debian.org (full text, mbox, reply):

From: Kirill Smelkov <kirr@navytux.spb.ru>

To: 689092@bugs.debian.org

Cc: Francois Gouget <fgouget@free.fr>

Subject: Re: libpng12-dev is not Multi-Arch compatible

Date: Fri, 1 Nov 2013 16:46:40 +0400

On Sat, Sep 29, 2012 at 03:09:00AM +0200, Francois Gouget wrote:
> Package: libpng12-dev
> Version: 1.2.49-1
> Severity: normal
> 
> Dear Maintainer,
> 
> The amd64 version conflicts with the i386 one which makes it impossible to install both. As a result the /usr/lib/i386-linux-gnu/libpng12.so symbolic link is missing so that developping 32bit applications (e.g. Wine) using this library is impossible on a 64bit system.
> 
> Furthermore this development package does not seem to be multiarch aware as there is no Multi-Arch field.
> 
> My understanding is that as long as there are no architecture-dependent headers there is no obstacle (i.e. no toolchain issue) to tagging the development package as 'Multi-Arch: same'. The symbolic link (and any static libraries) should be no issue as they are already in the architecture-qualified folders.
> 
> A good model for this appears to be the libx11-dev package.

This bug is quite blocking as several -dev packages depend, directly and
indirectly, on libpng12-dev and that prevents them from being used in
`Multi-Arch: same` style.

For development I'm keeping i386, amd64 and recently x32 libraries and
-dev packages, and in my case libpng12-dev prevents coinstallation of
i386 and amd64 versions of libslang2-dev and libsdl1.2-dev, but there are more.


> The /usr/bin/libpng12-config binary is going to cause trouble though :-(

Maybe let's drop it and replace with pkg-config .pc ?


Thanks,
Kirill

Message #15 received at 689092@bugs.debian.org (full text, mbox, reply):

From: Matthias Klose <doko@ubuntu.com>

To: 689092@bugs.debian.org

Subject: Re: libpng12-dev is not Multi-Arch compatible

Date: Thu, 19 Jun 2014 11:47:54 +0200

I searched the current Ubuntu utopic archive for all source packages
build-depending on libpng*-config and having files matching the libpng-config or
libpng12-config strings.

fltk1.1, fltk1.3, graphviz, htmldoc, qtbase-opensource-src, qt4-x11, apitrace,
devil, freeimage, gamera, gerbv, glmark2, irrlicht, libtk-img, literki,
phantomjs, povray, calligra, supertuxkart, wxwidgets3.0: - unused, only
mentioned in changelogs, doc files, or embedded copy of libpng

amule, amule-adunanza - has fallbacks, pass LIBPNG_CFLAGS,
    LIBPNG_LDFLAGS], LIBPNG_LIBS to configure

dillo - unconditional use of libpng2-config

grafx2 - unconditional use of libpng2-config

libwebp - has a fall back on the pkg-config file

openmsx - unconditional use of libpng2-config in build/3rdparty.mk,
   is this used at all?

perl-tk - not used, only has an unused embedded copy of libpng

libgd2 - fallback, requires --with-png to use the pkg-config files.

gnustep-gui - falls back to guessing

grfcodec - hard code libpng-config

neverball - hard coded

openlayer - hard coded

armagetronad - only using libpng-config

briquolo - only using libpng-config

crystalspace - fallback to pkg-config

directfb - only using libpng-config

fbdesk - fallback to standard autoconf tests

fuse-emulator - fallback to standard autoconf tests

gle-graphics - fallback to pkg-config

jwm - fallback to pkg-config

libapache2-mod-qos - only using libpng-config

openttd - only using libpng-config

pngnq - hard coded

qpxtool - only using libpng-config

rgl - fallback to standard autoconf tests

xbmc - only used libpng-config

Message #20 received at 689092@bugs.debian.org (full text, mbox, reply):

From: Matthias Klose <doko@ubuntu.com>

To: 689092@bugs.debian.org

Subject: proposed patch

Date: Thu, 19 Jun 2014 11:51:22 +0200

Control: tags -1 + patch

So the idea is to make the libpng-config script not referencing any multiarch
location.  Unfortunately the location is used for the --libdir option, so I
error out explicitly when this one is used. Afaics, only the --*flags options
are used.

The alternative approach would be to split out the binary into a separate
package, however this will require changes to the build dependencies of other
packages ...

patch at
http://launchpadlibrarian.net/177976125/libpng_1.2.50-1ubuntu2_1.2.50-1ubuntu3.diff.gz

Message #27 received at 689092-close@bugs.debian.org (full text, mbox, reply):

From: Anibal Monsalve Salazar <anibal@debian.org>

To: 689092-close@bugs.debian.org

Subject: Bug#689092: fixed in libpng 1.2.50-2

Date: Sat, 26 Jul 2014 03:37:00 +0000

Source: libpng
Source-Version: 1.2.50-2

We believe that the bug you reported is fixed in the latest version of
libpng, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 689092@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Anibal Monsalve Salazar <anibal@debian.org> (supplier of updated libpng package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Format: 1.8
Date: Sat, 26 Jul 2014 03:27:02 +0100
Source: libpng
Binary: libpng12-0 libpng12-dev libpng3 libpng12-0-udeb
Architecture: source mips
Version: 1.2.50-2
Distribution: unstable
Urgency: medium
Maintainer: Anibal Monsalve Salazar <anibal@debian.org>
Changed-By: Anibal Monsalve Salazar <anibal@debian.org>
Description:
 libpng12-0 - PNG library - runtime
 libpng12-0-udeb - PNG library - minimal runtime library (udeb)
 libpng12-dev - PNG library - development
 libpng3    - PNG library - runtime
Closes: 689092
Changes:
 libpng (1.2.50-2) unstable; urgency=medium
 .
   * Merge 1.2.50-1ubuntu3.
     Closes: #689092.
   * Use defaults for dh_builddeb.
   * Remove debian/source/options.
   * Refresh patches.
Checksums-Sha1:
 a78f523bafed4832e98114ca1d037dc2bbc674a6 2008 libpng_1.2.50-2.dsc
 fb3eba4cd5c5197dda10e48b73a59658303c82ab 18372 libpng_1.2.50-2.debian.tar.xz
 48f7120679582b703c88195047cf5e5270d6c47e 162748 libpng12-0_1.2.50-2_mips.deb
 aed32c6923a1ee7a8f5ca09cd5aa8808b16d7a19 245822 libpng12-dev_1.2.50-2_mips.deb
 5d69dbeedfbbde20010f8128858b7d92ef23eae6 1026 libpng3_1.2.50-2_mips.deb
 abef94c143ecb7b541f22c59c582dce32056f1b4 53726 libpng12-0-udeb_1.2.50-2_mips.udeb
Checksums-Sha256:
 6eada72036a525f34e499dcefa1a18f18e1b772d2e1e6f50bba397352d34dcf0 2008 libpng_1.2.50-2.dsc
 aea0ac347fe3491b009ebc2fe09f51787cfcfeadfaae53e697b91b1239c8b70b 18372 libpng_1.2.50-2.debian.tar.xz
 c32f8a1a3c02fba0ae2cda4102757264fb7cefd6836ee69cdb974b63e2f99565 162748 libpng12-0_1.2.50-2_mips.deb
 900541cb01c59ea8b379717bfebd17e4f1570fee10524df1749094e6b0f70612 245822 libpng12-dev_1.2.50-2_mips.deb
 f3aefc5e4e24c73a7336cef8adc8d71fad0e652aadc7ac19b1fb5f2c30a45440 1026 libpng3_1.2.50-2_mips.deb
 4c51397b541582102a3a3dd6f0b4a4fe27715de685dd27fdcd2efcdf902d71cb 53726 libpng12-0-udeb_1.2.50-2_mips.udeb
Files:
 023bd8a9b68083475c5379c71154cdcb 162748 libs optional libpng12-0_1.2.50-2_mips.deb
 8c700c46067b80e067f998666c91538c 245822 libdevel optional libpng12-dev_1.2.50-2_mips.deb
 dd228dc52e1482b7b86ffaef77a8364d 1026 oldlibs optional libpng3_1.2.50-2_mips.deb
 126000718c2cb5fa4015e5d3832ba2ea 53726 debian-installer extra libpng12-0-udeb_1.2.50-2_mips.udeb
 f38a0dc4ecc41b2af9ab1937d3851cd5 2008 libs optional libpng_1.2.50-2.dsc
 dc0d41d8b78f1550943f2f042e3eb5e7 18372 libs optional libpng_1.2.50-2.debian.tar.xz

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