Arch Linux

Description:

trying to launch programs (like firefox) that require pango results in error:

symbol lookup error: /usr/lib/libpangocairo-1.0.so.0: undefined symbol: g_object_replace_qdata

Additional info:
* package version(s)
firefox-18.0.2-1

pacman -Sy pango cairo harfbuzz icu libxft pixman
:: Synchronizing package databases...
core is up to date
extra is up to date
community is up to date
multilib is up to date
warning: pango-1.32.5-1 is up to date -- reinstalling
warning: cairo-1.12.12-1 is up to date -- reinstalling
warning: harfbuzz-0.9.9-3 is up to date -- reinstalling
warning: icu-50.1.2-1 is up to date -- reinstalling
warning: libxft-2.3.1-1 is up to date -- reinstalling
warning: pixman-0.28.2-1 is up to date -- reinstalling
resolving dependencies...
looking for inter-conflicts...

Targets (6): cairo-1.12.12-1 harfbuzz-0.9.9-3 icu-50.1.2-1 libxft-2.3.1-1 pango-1.32.5-1 pixman-0.28.2-1

Total Installed Size: 37.28 MiB
Net Upgrade Size: 0.00 MiB

Proceed with installation? [Y/n] Y

* config and/or log files etc.


ldd /usr/lib/libpangocairo-1.0.so.0
linux-vdso.so.1 (0x00007ffffd5ff000)
libcairo.so.2 => /usr/lib/libcairo.so.2 (0x00007f36431d3000)
libpangoft2-1.0.so.0 => /usr/lib/libpangoft2-1.0.so.0 (0x00007f3642fbe000)
libpango-1.0.so.0 => /usr/lib/libpango-1.0.so.0 (0x00007f3642d73000)
libgobject-2.0.so.0 => /usr/lib/libgobject-2.0.so.0 (0x00007f3642b24000)
libgmodule-2.0.so.0 => /usr/lib/libgmodule-2.0.so.0 (0x00007f3642920000)
librt.so.1 => /usr/lib/librt.so.1 (0x00007f3642718000)
libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0x00007f3642423000)
libharfbuzz.so.0 => /usr/lib/libharfbuzz.so.0 (0x00007f364218f000)
libm.so.6 => /usr/lib/libm.so.6 (0x00007f3641e91000)
libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x00007f3641bf2000)
libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0x00007f36419b7000)
libpthread.so.0 => /usr/lib/libpthread.so.0 (0x00007f364179b000)
libc.so.6 => /usr/lib/libc.so.6 (0x00007f36413ed000)
libpixman-1.so.0 => /usr/lib/libpixman-1.so.0 (0x00007f3641155000)
libpng15.so.15 => /usr/lib/libpng15.so.15 (0x00007f3640f28000)
libxcb-shm.so.0 => /usr/lib/libxcb-shm.so.0 (0x00007f3640d24000)
libxcb-render.so.0 => /usr/lib/libxcb-render.so.0 (0x00007f3640b1a000)
libxcb.so.1 => /usr/lib/libxcb.so.1 (0x00007f36408fb000)
libXrender.so.1 => /usr/lib/libXrender.so.1 (0x00007f36406ef000)
libX11.so.6 => /usr/lib/libX11.so.6 (0x00007f36403b6000)
libXext.so.6 => /usr/lib/libXext.so.6 (0x00007f36401a3000)
libz.so.1 => /usr/lib/libz.so.1 (0x00007f363ff8c000)
libgthread-2.0.so.0 => /usr/lib/libgthread-2.0.so.0 (0x00007f363fd8a000)
libpcre.so.1 => /usr/lib/libpcre.so.1 (0x00007f363fb2b000)
libffi.so.6 => /usr/lib/libffi.so.6 (0x00007f363f923000)
libdl.so.2 => /usr/lib/libdl.so.2 (0x00007f363f71f000)
libgraphite2.so.3 => /usr/lib/libgraphite2.so.3 (0x00007f363f4ff000)
libicule.so.50 => /usr/lib/libicule.so.50 (0x00007f363f2bd000)
libicuuc.so.50 => /usr/lib/libicuuc.so.50 (0x00007f363ef47000)
libicudata.so.50 => /usr/lib/libicudata.so.50 (0x00007f363d973000)
libbz2.so.1.0 => /usr/lib/libbz2.so.1.0 (0x00007f363d763000)
libexpat.so.1 => /usr/lib/libexpat.so.1 (0x00007f363d539000)
/usr/lib64/ld-linux-x86-64.so.2 (0x00007f3643715000)
libXau.so.6 => /usr/lib/libXau.so.6 (0x00007f363d334000)
libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x00007f363d12e000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f363ce2a000)
libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x00007f363cc15000)

ls -la /usr/lib/libpan
libpanel.a libpango-1.0.so libpangoft2-1.0.so libpangoxft-1.0.so
libpanel.so libpango-1.0.so.0 libpangoft2-1.0.so.0 libpangoxft-1.0.so.0
libpanelw.a libpango-1.0.so.0.3200.5 libpangoft2-1.0.so.0.3200.5 libpangoxft-1.0.so.0.3200.5
libpanelw.so libpangocairo-1.0.so libpangox-1.0.so
libpanelw.so.5 libpangocairo-1.0.so.0 libpangox-1.0.so.0
libpanelw.so.5.9 libpangocairo-1.0.so.0.3200.5 libpangox-1.0.so.0.0.0

pacman -Qo /usr/lib/libpango-1.0.so
/usr/lib/libpango-1.0.so is owned by pango 1.32.5-1

Linux <X> 3.5.3-1-ARCH #1 SMP PREEMPT Sun Aug 26 09:14:51 CEST 2012 x86_64 GNU/Linux

Steps to reproduce:
firefox