Note to self: Better try out external patches and don't just review them.

The last change to the Makefile.am's introduced new dependencies from these libs to kdevinterfaces, unfortunately the patch doesn't work with out-of-source builds.

That's why debian package building broke - they use out-of-src boulds for their packages.

If you want to depends on a .la file you always need to use ${top_builddir} not ${top_srcdir}.