Add --with-dec-threads, for DEL Alpha, which requires -threads as the *final* linker argument.  This implies --with-thread.
Add --with-dec-threads, for DEL Alpha, which requires -threads as the
*final* linker argument.  This implies --with-thread.

Reimplemented --with-threads as an alias for --with-thread.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator