[Bug build/31483] [gdb/build, postmarketos] error: 'W_EXITCODE' was not declared in this scope

["vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=31483

--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> ---
In gdbsupport/gdb_wait.h, we have:
...
#ifndef WSETEXIT
# ifdef W_EXITCODE
#define WSETEXIT(w,status) ((w) = W_EXITCODE(status,0))
# else
#define WSETEXIT(w,status) ((w) = (0 | ((status) << 8)))
# endif
#endif
...
so this should probably work:
...
diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc
index 9d5a6242803..aaa7bbc2a4c 100644
--- a/gdbserver/linux-low.cc
+++ b/gdbserver/linux-low.cc
@@ -1904,7 +1904,9 @@ linux_process_target::check_zombie_leaders ()
          thread_info *leader_thread = get_lwp_thread (leader_lp);
          if (report_exit_events_for (leader_thread))
            {
-             mark_lwp_dead (leader_lp, W_EXITCODE (0, 0), true);
+             int wstat;
+             WSETEXIT (wstat, 0);
+             mark_lwp_dead (leader_lp, wstat, true);
              new_pending_event = true;
            }
          else
...

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