But of course! Just like you I could've sworn I read somewhere that we didn't need the utility anymore but it looks like we still do! Good thing its still up at RB's site cause I think I wiped my old dev/mame folder when I got my Mac Pro and didn't have it anymore!
Patching went well and all but looks like us older 32 bit Mac Pro's still have to use the PTR64=1 flag when compiling. Mine went all the way to the 'linking mame' step, and then I got those same 7z errors I saw mentioned on page 43 of the 'How to build' thread.. At least the FLAC errors aren't there anymore!
(Was about to post my big old command line output and ask about it until I went 'oh wait lets go check some threads first' hehehe)..