wine-0.9.10 works, but when i try to emerge wine build 0.9.11, i get the following error: /usr/kde/3.5/lib64/libartsc.so: could not read symbols: File in wrong format
0.9.11 is explicitly keyworded -amd64; means b0rked on amd64, don't waste your time.
*** Bug 129557 has been marked as a duplicate of this bug. ***
Actually the ebuild has the ~amd64 keyword, not the -amd64 one. If it had been explicitly keyworded as -amd64 the would have been no bug, because portage wouldn't have considered it at all on amd64. So, please change the keyword.