failed powerpc build of gtkmm2.4 1:2.24.4-1

[Debian buildds]

 * Source package: gtkmm2.4
 * Version: 1:2.24.4-1
 * Architecture: powerpc
 * State: failed
 * Suite: sid
 * Builder: parry.debian.org
 * Build log: https://buildd.debian.org/fetch.cgi?pkg=gtkmm2.4&arch=powerpc&ver=1%3A2.24.4-1&stamp=1372540688&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.