A recent change in the tdep structure for the alpha target caused a
build failure on Tru64: skip_sigtramp_frame has been removed.

I really don't know what to do to fix this. It looks like Richard has
implemented a better unwinder in alpha-mdebug-tdep, which I should be
able to use on Tru64 as well. Here is just a diff showing the little
play on sources I did in order to illustrate my changes.

I haven't had time to look at this closer, so I don't know what I'm
doing. Help, please?

        * config/alpha/alpha-osf1.mt (TDEPFILES): Add alpha-mdebug-tdep.o.
        * alpha-osf1-tdep.c (alpha_osf1_init_abi): Do not set
        skip_sigtramp_frame in tdep structure, field no longer exists.

Thanks,
-- 
Joel