After yesterday's rebuilds, there remain 271 binary packages from 232 source packages that still require libpng-compat.
No FTBFS bugs have been filed at this time.
There's a pretty wide variety of failures represented here. In addition to the libpng API changes, a quick scan also unconvers glib deprecation failures, unsatisfiable buildroots, gcc getting yet more strict about C++, and even a few implicit-dso-linking errors.
Since libpng uses symbol versions, and rpm is smart enough to embed symbol versions into DSO provides and requires, there's another bit of data we can extract here. If a (i686) package requires libpng12.so.0 but not libpng12.so.0(PNG12_0), then it is _linked against_ libpng12 but does not use any symbols from it. The link can usually be dropped; and any build failure exposed by this rebuild stands a good chance of not being libpng's fault. There are 102 such binary packages, from 99 source packages.
List of all packages requiring libpng-compat:
$ repoquery --whatrequires --qf=%{sourcerpm} libpng-compat | grep -v redhat-lsb | sort | uniq -c | sort -nr 8 qt3-3.3.8b-37.fc17.src.rpm 4 papyrus-0.13.3-2.fc14.1.src.rpm 4 libindicator-0.3.22-1.fc16.src.rpm 4 gdal-1.7.3-10.fc16.src.rpm 3 tachyon-0.99-0.2.b2.fc16.src.rpm 3 openvrml-0.18.8-2.fc16.src.rpm 2 xfig-3.2.5-26.b.fc15.src.rpm 2 xfce4-screenshooter-1.8.0-2.fc17.src.rpm 2 WindowMaker-0.92.0-22.fc15.src.rpm 2 texlive-2007-66.fc17.src.rpm 2 pioneers-0.12.3-3.fc15.src.rpm 2 parole-0.2.0.2-6.fc15.src.rpm 2 oyranos-0.3.1-2.fc17.src.rpm 2 libpano12-2.8.6-5.fc15.src.rpm 2 koffice-2.3.3-17.fc17.src.rpm 2 irrlicht-1.7.2-8.fc17.src.rpm 2 GREYCstoration-2.8-6.fc15.src.rpm 2 freewrl-1.22.12-0.3.pre2.fc17.src.rpm 2 fillmore-lombard-0.1.0-5.fc15.src.rpm 2 directfb-1.5.3-1.fc17.src.rpm 2 conexus-0.9.1-3.fc14.1.src.rpm 2 cinepaint-0.25.0-0.2.fc16.src.rpm 2 boinc-client-6.12.35-1.r24014svn.fc17.src.rpm 2 allegro5-5.0.3-1.fc16.src.rpm 2 abiword-2.8.6-14.fc17.src.rpm 1 zvbi-0.2.33-8.fc17.src.rpm 1 xu4-1.1-0.14.20110329svn2873.fc16.src.rpm 1 xoo-0.7-13.fc15.src.rpm 1 xneur-0.13.0-1.fc16.src.rpm 1 xnec2c-1.5-1.fc16.src.rpm 1 xmedcon-0.10.7-4.fc17.src.rpm 1 xlog-2.0.5-1.fc16.src.rpm 1 xloadimage-4.1-6.fc16.src.rpm 1 xiphos-3.1.4-8.fc15.src.rpm 1 xine-ui-0.99.6-27.fc16.1.src.rpm 1 xfhell-1.9-5.fc15.src.rpm 1 xfce4-wavelan-plugin-0.5.6-3.fc15.src.rpm 1 xfce4-timer-plugin-0.6.1-7.fc16.src.rpm 1 xfce4-radio-plugin-0.5.1-1.fc16.src.rpm 1 xfce4-diskperf-plugin-2.3.0-2.fc16.src.rpm 1 xchat-2.8.8-10.fc16.src.rpm 1 xcftools-1.0.7-2.fc15.src.rpm 1 xaos-3.5-2.fc15.src.rpm 1 wormux-0.9.2.1-5.fc16.src.rpm 1 wmfire-1.2.3-4.fc15.src.rpm 1 wmdrawer-0.10.5-11.fc16.src.rpm 1 winwrangler-0.2.4-2.fc15.src.rpm 1 widelands-0-0.26.build16.fc16.src.rpm 1 volumeicon-0.4.1-3.fc17.src.rpm 1 viewnior-1.1-2.fc15.src.rpm 1 tvtime-1.0.2-17.fc15.src.rpm 1 tuxpuck-0.8.2-9.fc15.src.rpm 1 tuxpaint-0.9.21-5.fc15.src.rpm 1 tucnak2-2.31-1.fc13.src.rpm 1 transfig-3.2.5d-3.fc17.src.rpm 1 torcs-1.3.1-4.fc15.src.rpm 1 TnL-071111-13.fc14.src.rpm 1 tkimg-1.4-4.fc17.src.rpm 1 tilda-0.9.6-6.fc16.src.rpm 1 tangogps-0.99.4-3.fc15.src.rpm 1 t4k_common-0.1.1-2.fc17.src.rpm 1 systemtap-1.6-1.fc16.src.rpm 1 synfigstudio-0.62.02-1.fc15.src.rpm 1 synfig-0.62.02-1.fc15.src.rpm 1 synapse-0.2.6-1.fc16.src.rpm 1 surf-0.4.1-3.fc15.src.rpm 1 subtitleeditor-0.39.0-1.fc16.src.rpm 1 stratagus-2.2.4-9.fc15.src.rpm 1 stardict-3.0.2-2.fc16.src.rpm 1 slim-1.3.2-7.fc16.src.rpm 1 skanlite-0.7-3.fc16.src.rpm 1 SILLY-0.1.0-8.fc15.src.rpm 1 scummvm-tools-1.2.0-2.fc15.src.rpm 1 rpmdepsize-1.0-7.fc15.src.rpm 1 regexxer-0.9-6.fc15.src.rpm 1 qtparted-0.4.5-26.fc15.src.rpm 1 qtcurve-gtk2-1.8.5-4.fc16.src.rpm 1 qrencode-3.1.1-5.fc15.src.rpm 1 python-matplotlib-1.0.1-14.fc17.src.rpm 1 puzzles-9023-2.fc15.src.rpm 1 putty-0.60-7.20100910svn.fc15.src.rpm 1 pspp-0.6.2-3.fc15.src.rpm 1 printoxx-2.8.1-2.fc15.src.rpm 1 pnmixer-0.3-1.fc16.src.rpm 1 pngnq-1.1-1.fc16.src.rpm 1 pngcrush-1.6.10-7.fc15.src.rpm 1 plotutils-2.6-1.fc16.src.rpm 1 plee-the-bear-0.6.0-1.fc17.src.rpm 1 pino-0.3-0.3.20101112hg.fc15.src.rpm 1 pilot-link-0.12.5-7.fc16.src.rpm 1 pidgin-gfire-0.9.4-2.fc16.src.rpm 1 parcellite-0.9.2-3.fc15.src.rpm 1 paco-2.0.9-7.fc17.src.rpm 1 optipng-0.6.5-1.fc16.src.rpm 1 openmsx-0.7.2-4.fc16.src.rpm 1 OpenGTL-0.9.15.1-3.fc17.src.rpm 1 nogravity-2.00-12.fc15.src.rpm 1 nip2-7.26.3-1.fc17.src.rpm 1 NetworkManager-vpnc-0.9.0-1.fc17.src.rpm 1 NetworkManager-pptp-0.9.0-1.fc17.src.rpm 1 NetworkManager-openvpn-0.9.0-1.fc17.src.rpm 1 NetworkManager-openswan-0.9.0-1.fc17.src.rpm 1 network-manager-netbook-1.8-3.fc15.src.rpm 1 nethack-vultures-2.1.2-3.fc15.src.rpm 1 natus-0.1.5-2.fc15.src.rpm 1 naev-0.5.0-3.fc16.src.rpm 1 munipack-1.2.10-2.fc15.src.rpm 1 minbar-0.2.1-11.fc15.src.rpm 1 mhgui-0.2-9.fc15.src.rpm 1 metapixel-1.0.2-7.fc15.src.rpm 1 meego-panel-status-0.3.2-2.fc15.src.rpm 1 meego-panel-pasteboard-0.0.8-3.fc15.src.rpm 1 meego-panel-applications-0.2.5-3.fc15.src.rpm 1 mathmap-1.3.5-2.fc15.src.rpm 1 mathgl-1.11.2-4.fc16.src.rpm 1 luakit-2011.07.22.r1-1.fc17.src.rpm 1 linphone-3.4.3-1.fc17.src.rpm 1 links-2.2-13.fc15.src.rpm 1 lifeograph-0.6.2-4.fc15.src.rpm 1 licq-1.3.5-10.fc15.src.rpm 1 libxfcegui4-4.8.1-3.fc15.src.rpm 1 libinfinity-0.5.0-2.fc15.src.rpm 1 libicns-0.7.1-2.fc15.src.rpm 1 libharu-2.1.0-3.fc15.src.rpm 1 libgtksourceviewmm-0.3.1-7.fc15.src.rpm 1 libgtk-java-2.10.2-5.fc16.src.rpm 1 libgtkhotkey-0.2.1-4.fc15.src.rpm 1 libgnome-java-2.12.7-6.fc15.src.rpm 1 libglpng-1.45-4.fc15.src.rpm 1 libgdiplus-2.10-2.fc16.src.rpm 1 libclaw-1.7.0-1.fc17.src.rpm 1 libccss-0.3.1-7.fc15.src.rpm 1 libAfterImage-1.20-2.fc15.src.rpm 1 lekhonee-gnome-0.11-4.fc15.src.rpm 1 lbrickbuster2-2.6-0.12.beta7.fc15.src.rpm 1 latexila-2.0.8-1.fc16.src.rpm 1 kshutdown-1.0.1-5.fc15.src.rpm 1 kmplayer-0.11.2c-5.fc16.src.rpm 1 java-gnome-4.1.1-1.fc16.src.rpm 1 jack-rack-1.4.7-7.fc15.src.rpm 1 hulahop-0.7.1-3.fc14.src.rpm 1 htmldoc-1.8.27-15.fc16.src.rpm 1 hitori-0.3.1-1.fc16.src.rpm 1 hardinfo-0.5.1-3.fc15.src.rpm 1 gxneur-0.13.0-1.fc16.src.rpm 1 gwget-1.0.4-5.fc15.src.rpm 1 guiloader-c++-2.19.0-2.fc15.src.rpm 1 guake-0.4.2-3.fc15.src.rpm 1 gtksourceviewmm-2.10.2-2.fc16.src.rpm 1 gtksourceview2-2.11.2-6.fc15.src.rpm 1 gtksourceview-1.8.5-8.fc15.src.rpm 1 gtk-murrine-engine-0.98.1.1-2.fc15.src.rpm 1 gtkmm-utils-0.4.1-3.fc15.src.rpm 1 gtk+extra-2.1.2-6.fc16.src.rpm 1 gtk-equinox-engine-1.50-1.fc17.src.rpm 1 gtk-chtheme-0.3.1-6.fc14.src.rpm 1 gtk-aurora-engine-1.5.1-5.fc15.src.rpm 1 gshutdown-0.2-8.fc16.src.rpm 1 GraphicsMagick-1.3.12-6.fc16.src.rpm 1 grads-2.0.a9-0.5.fc16.src.rpm 1 grace-5.1.22-9.fc16.src.rpm 1 gq-1.3.4-10.fc15.src.rpm 1 gpx-viewer-0.2.0-3.fc14.src.rpm 1 gpsim-0.26.1-1.fc16.src.rpm 1 gphpedit-0.9.95-0.2.20090209snap.fc15.src.rpm 1 goffice-0.8.17-1.fc17.src.rpm 1 gnubg-0.9.0.1-10.fc15.src.rpm 1 gnome-paint-0.4.0-4.fc16.src.rpm 1 gnome-do-0.8.5-7.fc17.src.rpm 1 gnofract4d-3.13-2.fc15.src.rpm 1 gnaughty-1.2.4-2.fc15.src.rpm 1 gmpc-0.20.0-4.fc15.src.rpm 1 gimmix-0.5.7.1-2.fc15.src.rpm 1 gif2png-2.5.4-1501.fc15.src.rpm 1 gerbv-2.5.0-2.fc17.src.rpm 1 geoclue-0.12.0-7.fc16.src.rpm 1 genius-1.0.12-2.fc15.src.rpm 1 gedit-valencia-0.3.0-7.20110701git808152718e3ab.fc17.src.rpm 1 gedit-collaboration-3.0.0-1.fc16.src.rpm 1 gdmap-0.8.1-8.fc15.src.rpm 1 gconf-cleaner-0.0.3-2.fc15.src.rpm 1 gcompris-9.5-4.fc15.src.rpm 1 fvwm-2.5.30-4.fc16.src.rpm 1 fuse-emulator-1.0.0.1-1.fc16.src.rpm 1 freeimage-3.10.0-5.fc15.src.rpm 1 freedroidrpg-0.13-3.fc15.src.rpm 1 fotoxx-10.11.1-8.fc15.src.rpm 1 fontik-0.6-4.20100901git8dd5b9fe7.fc15.src.rpm 1 fontforge-20110222-4.fc16.src.rpm 1 florence-0.5.0-2.fc17.src.rpm 1 fldigi-3.21.7-1.fc16.src.rpm 1 flam3-3.0-3.20101118svn35.fc15.src.rpm 1 fbida-2.07-8.fc15.src.rpm 1 fbdesk-1.4.1-7.fc15.src.rpm 1 enigma-1.01-15.src.rpm 1 enblend-4.0-8.fc16.src.rpm 1 emerald-0.8.5-0.4.git90c9604441.fc16.src.rpm 1 ekg2-0.2-0.17.rc1.fc16.src.rpm 1 eboard-1.1.1-7.fc15.src.rpm 1 eazykeyboard-2.0-4.fc15.src.rpm 1 driftnet-0.1.6-21.20040426cvs.fc15.src.rpm 1 dmapd-0.0.37-3.fc16.src.rpm 1 dia-0.97-6.fc16.src.rpm 1 darktable-0.9.2-2.fc17.src.rpm 1 crossfire-client-1.11.0-4.fc15.src.rpm 1 CriticalMass-1.0.2-9.fc15.src.rpm 1 coot-0.6.2-8.20110715svn3566.fc16.src.rpm 1 conky-1.8.1-2.fc15.src.rpm 1 compiz-0.9.5.92.1-0.1.gite676f1b12eb8db3a76978eed5bfc7c2cf9a0b6ce.fc17.src.rpm 1 ClanLib-2.1.2-2.fc15.src.rpm 1 ClanLib1-1.0.0-6.fc16.src.rpm 1 ClanLib06-0.6.5-19.fc16.src.rpm 1 celestia-1.6.0-2.fc15.src.rpm 1 camstream-0.26.3-19.fc12.src.rpm 1 camorama-0.19-4.fc15.src.rpm 1 cairo-clock-0.3.4-5.fc15.src.rpm 1 byzanz-0.3-0.2.fc16.src.rpm 1 bwbar-1.2.3-7.fc16.src.rpm 1 buoh-0.8.2-9.fc15.src.rpm 1 bolzplatz2006-1.0.3-13.fc16.src.rpm 1 BlockOutII-2.3-8.fc15.src.rpm 1 bit-0.4.90-11.fc14.1.src.rpm 1 avant-window-navigator-0.4.1-0.4.bzr830.fc16.src.rpm 1 autotrace-0.31.1-26.fc15.1.src.rpm 1 audacity-1.3.13-0.4.beta.fc16.src.rpm 1 armacycles-ad-0.2.8.3.1-2.fc14.src.rpm 1 ario-1.5-1.fc16.src.rpm 1 amsn-0.98.4-4.fc16.src.rpm 1 amanith-0.3-17.fc16.src.rpm 1 alevt-1.6.2-16.fc15.src.rpm 1 3Depict-0.0.7-1.fc17.src.rpm
List of all source packages with at least one binary rpm uselessly linked against libpng-compat (build failure possibly not libpng's fault):
$ repoquery --whatrequires 'libpng12.so.0(PNG12_0)' --qf=%{sourcerpm} | sort -u 3Depict-0.0.7-1.fc17.src.rpm abiword-2.8.6-14.fc17.src.rpm alevt-1.6.2-16.fc15.src.rpm allegro5-5.0.3-1.fc16.src.rpm amanith-0.3-17.fc16.src.rpm amsn-0.98.4-4.fc16.src.rpm armacycles-ad-0.2.8.3.1-2.fc14.src.rpm BlockOutII-2.3-8.fc15.src.rpm bolzplatz2006-1.0.3-13.fc16.src.rpm bwbar-1.2.3-7.fc16.src.rpm celestia-1.6.0-2.fc15.src.rpm cinepaint-0.25.0-0.2.fc16.src.rpm ClanLib06-0.6.5-19.fc16.src.rpm ClanLib1-1.0.0-6.fc16.src.rpm ClanLib-2.1.2-2.fc15.src.rpm compiz-0.9.5.92.1-0.1.gite676f1b12eb8db3a76978eed5bfc7c2cf9a0b6ce.fc17.src.rpm coot-0.6.2-8.20110715svn3566.fc16.src.rpm CriticalMass-1.0.2-9.fc15.src.rpm crossfire-client-1.11.0-4.fc15.src.rpm darktable-0.9.2-2.fc17.src.rpm dia-0.97-6.fc16.src.rpm directfb-1.5.3-1.fc17.src.rpm driftnet-0.1.6-21.20040426cvs.fc15.src.rpm eboard-1.1.1-7.fc15.src.rpm enblend-4.0-8.fc16.src.rpm enigma-1.01-15.src.rpm fbida-2.07-8.fc15.src.rpm flam3-3.0-3.20101118svn35.fc15.src.rpm fldigi-3.21.7-1.fc16.src.rpm fontforge-20110222-4.fc16.src.rpm freedroidrpg-0.13-3.fc15.src.rpm freeimage-3.10.0-5.fc15.src.rpm freewrl-1.22.12-0.3.pre2.fc17.src.rpm fuse-emulator-1.0.0.1-1.fc16.src.rpm fvwm-2.5.30-4.fc16.src.rpm gdal-1.7.3-10.fc16.src.rpm gif2png-2.5.4-1501.fc15.src.rpm gnofract4d-3.13-2.fc15.src.rpm gnubg-0.9.0.1-10.fc15.src.rpm grace-5.1.22-9.fc16.src.rpm grads-2.0.a9-0.5.fc16.src.rpm GraphicsMagick-1.3.12-6.fc16.src.rpm GREYCstoration-2.8-6.fc15.src.rpm htmldoc-1.8.27-15.fc16.src.rpm irrlicht-1.7.2-8.fc17.src.rpm koffice-2.3.3-17.fc17.src.rpm lbrickbuster2-2.6-0.12.beta7.fc15.src.rpm libclaw-1.7.0-1.fc17.src.rpm libgdiplus-2.10-2.fc16.src.rpm libglpng-1.45-4.fc15.src.rpm libharu-2.1.0-3.fc15.src.rpm libicns-0.7.1-2.fc15.src.rpm libpano12-2.8.6-5.fc15.src.rpm links-2.2-13.fc15.src.rpm mathgl-1.11.2-4.fc16.src.rpm mathmap-1.3.5-2.fc15.src.rpm metapixel-1.0.2-7.fc15.src.rpm mhgui-0.2-9.fc15.src.rpm naev-0.5.0-3.fc16.src.rpm nethack-vultures-2.1.2-3.fc15.src.rpm nogravity-2.00-12.fc15.src.rpm OpenGTL-0.9.15.1-3.fc17.src.rpm openmsx-0.7.2-4.fc16.src.rpm openvrml-0.18.8-2.fc16.src.rpm optipng-0.6.5-1.fc16.src.rpm oyranos-0.3.1-2.fc17.src.rpm pilot-link-0.12.5-7.fc16.src.rpm plotutils-2.6-1.fc16.src.rpm pngcrush-1.6.10-7.fc15.src.rpm pngnq-1.1-1.fc16.src.rpm python-matplotlib-1.0.1-14.fc17.src.rpm qrencode-3.1.1-5.fc15.src.rpm qt3-3.3.8b-37.fc17.src.rpm scummvm-tools-1.2.0-2.fc15.src.rpm SILLY-0.1.0-8.fc15.src.rpm skanlite-0.7-3.fc16.src.rpm slim-1.3.2-7.fc16.src.rpm stratagus-2.2.4-9.fc15.src.rpm synfig-0.62.02-1.fc15.src.rpm t4k_common-0.1.1-2.fc17.src.rpm tachyon-0.99-0.2.b2.fc16.src.rpm texlive-2007-66.fc17.src.rpm tkimg-1.4-4.fc17.src.rpm TnL-071111-13.fc14.src.rpm transfig-3.2.5d-3.fc17.src.rpm tucnak2-2.31-1.fc13.src.rpm tuxpaint-0.9.21-5.fc15.src.rpm tuxpuck-0.8.2-9.fc15.src.rpm tvtime-1.0.2-17.fc15.src.rpm widelands-0-0.26.build16.fc16.src.rpm WindowMaker-0.92.0-22.fc15.src.rpm wormux-0.9.2.1-5.fc16.src.rpm xcftools-1.0.7-2.fc15.src.rpm xfig-3.2.5-26.b.fc15.src.rpm xine-ui-0.99.6-27.fc16.1.src.rpm xloadimage-4.1-6.fc16.src.rpm xmedcon-0.10.7-4.fc17.src.rpm xu4-1.1-0.14.20110329svn2873.fc16.src.rpm zvbi-0.2.33-8.fc17.src.rpm
- ajax
On 12/06/2011 12:17 PM, Adam Jackson wrote:
amanith-0.3-17.fc16.src.rpm freewrl-1.22.12-0.3.pre2.fc17.src.rpm irrlicht-1.7.2-8.fc17.src.rpm tkimg-1.4-4.fc17.src.rpm xloadimage-4.1-6.fc16.src.rpm
All of these are fixed now in rawhide and properly link to -lpng15 (freewrl also required that I fix xulrunner). Almost all of them were just using hardcoded -lpng calls, which I replaced with calls to either pkg-config or libpng-config. tkimg required quite a bit more, but it's done, and I can go back to pretending it doesn't exist for another year.
I think that's all of my packages in this list.
~tom
== Fedora Project
Hi,
On 12/06/2011 06:17 PM, Adam Jackson wrote:
After yesterday's rebuilds, there remain 271 binary packages from 232 source packages that still require libpng-compat.
No FTBFS bugs have been filed at this time.
There's a pretty wide variety of failures represented here. In addition to the libpng API changes, a quick scan also unconvers glib deprecation failures, unsatisfiable buildroots, gcc getting yet more strict about C++, and even a few implicit-dso-linking errors.
Since libpng uses symbol versions, and rpm is smart enough to embed symbol versions into DSO provides and requires, there's another bit of data we can extract here. If a (i686) package requires libpng12.so.0 but not libpng12.so.0(PNG12_0), then it is _linked against_ libpng12 but does not use any symbols from it. The link can usually be dropped; and any build failure exposed by this rebuild stands a good chance of not being libpng's fault. There are 102 such binary packages, from 99 source packages.
Thanks for your work on this. I've fixed, and rebuild against libpng-1.5, the following packages:
zvbi widelands SILLY openmsx nogravity libglpng lbrickbuster2 gcompris camorama CriticalMass ClanLib06 ClanLib1 ClanLib methane openalchemist bolzplatz2006, BlockOutII
Which should take care of all my packages on the list.
Regards,
Hans
Adam Jackson ajax@redhat.com writes:
After yesterday's rebuilds, there remain 271 binary packages from 232 source packages that still require libpng-compat.
This is a bit late of course, but I have just upgraded to xbmc from rpmfusion-rawhide which required libpng15. I allowed yum to pull in dependencies from rawhide, so any dependencies on libpng should be taken care of.
Unfortunately not.
As an example, take gnome-session (which I upgraded explicitly in an attempt to fix the problem):
# rpm -q gnome-session gnome-session-3.3.3-1.fc17.x86_64
# rpm -q --requires gnome-session | fgrep -i png (no output)
# ldd /usr/bin/gnome-session|fgrep -i png libpng12.so.0 => /usr/lib64/libpng12.so.0 (0x00007fbd0a0c7000)
A lot of packages suffer from the same problem; they depend on libpng but the RPM does not require libpng.
/Benny
fredagen den 30 december 2011 00:07:02 skrev Benny Amorsen:
# rpm -q --requires gnome-session | fgrep -i png (no output)
# ldd /usr/bin/gnome-session|fgrep -i png libpng12.so.0 => /usr/lib64/libpng12.so.0 (0x00007fbd0a0c7000)
A lot of packages suffer from the same problem; they depend on libpng but the RPM does not require libpng.
ldd works recursively. What does "readelf --dynamic /usr/bin/gnome-session | fgrep -i png" output?
Björn Persson
Björn Persson bjorn@xn--rombobjrn-67a.se writes:
ldd works recursively. What does "readelf --dynamic /usr/bin/gnome-session | fgrep -i png" output?
Thank you very much for your help. gnome-session depends on libgdk_pixbuf-2.0.so.0()(64bit) and gdk-pixbuf2 depends on libpng12.so.0()(64bit), so every dependency is correct.
The problem was really stupid and I do apologize: arkwui, a part of the proprietary Arkeia backup system, provides libpng12.so.0()(64bit) without actually putting libpng12.so.0 anywhere useful.
Sorry for wasting your time.
/Benny
(Why are backup systems universally crap?)