[Swan-commit] Changes to ref refs/heads/main

[Andrew Cagney]

New commits:
commit 96eb3752315025d79193c00233998a249df2a030
Author: Andrew Cagney <cagney at gnu.org>
Date:   Sun May 29 15:22:12 2022 -0400

    building: define $(LIBEVENT_LDFLAGS) as -levent_core -levent_pthreads
    
    All, but NetBSD, provide event_core.so.

commit 43d3bc7c64644769e32c0e120d975389bb07a92f
Author: Andrew Cagney <cagney at gnu.org>
Date:   Sun May 29 10:58:01 2022 -0400

    openbsd: add hack to define RT_ADVANCE()

commit 8c86d64d1630b084bdd7140525537eedb5346b8d
Author: Andrew Cagney <cagney at gnu.org>
Date:   Sun May 29 11:12:33 2022 -0400

    openbsd: refresh the local pfkeyv2.h

commit 0dc5fd2867ad4d804ab5872367c6ea0a1423d6d6
Author: Andrew Cagney <cagney at gnu.org>
Date:   Sun May 29 11:07:57 2022 -0400

    iface: don't define .enable_esp_encap() when no UDP_ENCAP