Uros Bizjak <ubizjak@gmail.com> writes:

> It turned out that the EpollEvent definition in
> libgo/syscalls/epoll/socket_epoll.go is non-portable (if not outright
> dangerous...). The definition does have a FIXME comment, but does not
> take into account the effects of __attribute__((__packed__)) from
> system headers. Contrary to alpha header, x86 has
> __attribute__((__packed__)) added to struct epoll_event definition in
> sys/epoll.h header.

I couldn't work out a way to handle this correctly in mksysinfo.sh or
-fdump-go-spec, so I did it in configure instead.  Bootstrapped and
tested on x86_64-unknown-linux-gnu.  Committed to mainline.  Let me know
if it seems to do the right sort of thing on Alpha GNU/Linux--see if the
generated file TARGET/libgo/epoll.h looks OK.

Ian