failed powerpc build of gnome-shell 2.31.5-2

[Debian buildds]

 * Source package: gnome-shell
 * Version: 2.31.5-2
 * Architecture: powerpc
 * State: failed
 * Suite: experimental
 * Builder: poulenc.debian.org
 * Build log: https://buildd.debian.org/fetch.cgi?pkg=gnome-shell&arch=powerpc&ver=2.31.5-2&stamp=1286239821&file=log

Please note that these notifications do not necessarily mean bug reports
in your package but could also be caused by other packages, temporary
uninstallabilities and arch-specific breakages.  A look at the build log
despite this disclaimer would be appreciated however.