http://bugs.winehq.org/show_bug.cgi?id=58612
--- Comment #2 from Rafał Mużyło galtgendo@o2.pl --- Are you sure that's the whole output in relation of the source file ?
Looking at tomcrypt_hash.h, ltc_hash_descriptor seems to be defined unconditionally there, so it would seem a wrong header is being picked up...
Does Arch install its own copy of tomcrypt (well, besides the one you've installed yourself) ?