There are two problems, the path returned by common.library_build_path() is wrong when common.binary_build_path() has previously been called, and the test is still looking for the .la instead of .so
Created attachment 231142 [details] Patch This doesn't fail in the bots, because bots have never run these tests since the CMAKE switch, see bug #132684
Committed r168526: <http://trac.webkit.org/changeset/168526>