* configure.host: Enable hash synchronization for alpha*-*.

* include/posix-threads.h (_Jv_ThreadSelf): Added inline function for alpha.
* java/lang/natObject.cc (compare_and_swap, release_set,
compare_and_swap_release): Added inline functions for alpha.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@44251 138bc75d-0d04-0410-961f-82ee72b054a4