[SyncEvolution] compiling more than one gui

Hi All, I'm trying to compile both the moblin and gtk guis for syncevolution and there doesn't seem to be a way to do so. I've tried various combinations of gtk and moblin on the --enable-gui= option but there doesn't appear to be a way to get it to compile both. Is it possible to add an "all" option so you can do --enable-gui=all and get both the guis? Cheers, Peter