Object.m (errno): Replaced by errno.h include.

2008-11-21  Kai Tietz  <kai.tietz@onevision.com>

        *  Object.m (errno): Replaced by errno.h include.
        (compare): Cast self to id to prevent warning on comparison.
        * objc/objc.h (BOOL): Prevent redeclaration of BOOL, if it is
        already there.
        * sendmsg.c (__objc_print_dtable_stats): Remove type warnings.
        * thr-win32.c (__objc_thread_detach): Remove type warning.
        (__objc_thread_id): Likewise.
        * thr.c (__objc_thread_detach_functiont): Add __builtin_trap ()
        for noreturn.

From-SVN: r142087