I can't emerge portage on osx libsandbox.c canonicalize.c and getcwd.c all fail for various reasons.. see forums link
Which version did you try to install? Gentoo for Mac OS X doesn't support <=portage-2.0.50. You could install one of 51_pre17, 51_pre20 or 51_pre23.
>>> emerge (1 of 1) sys-apps/portage-2.0.50-r11 to /
pre20 worked fine =) but etc-update bever does anything, just scans and then says nothing to be done, even though evertime i emerge after that it still says X files need to be updated
etc-update doesn't support Mac OS X yet. Please upgrade portage to >=51_pre23 (_pre24 and _rc1 have been added) and apply etc-update patch available at bug #60721.
Closing out bugs that've been resolved for a while now...