Allow dhclient and ping to build WITHOUT_DYNAMICROOT

[emaste]

Summary

dhclient and ping normally use libcasper services. These are not available in statically-linked binaries, so when WITHOUT_DYNAMICROOT is set disable libcasper use, as with rescue builds. Also emit a warning as it's undesirable to build this way.

Reported by:    Michael Dexter (D17040)
Sponsored by:   The FreeBSD Foundation

[rgrimes]

It just hit me and I have to ask, why isnt libcasper avaliable in a static configuration? I certainly see a /usr/lib/libcasper.a on my systems.

[emaste]

In D17074#364050, @rgrimes wrote:

I certainly see a /usr/lib/libcasper.a on my systems.

See rS325398 - it's not built any longer.

[editor_callfortesting.org]

That looks good to me. Please advise if you want me to test it.

[emaste]

Please go ahead and test if you have time, a confirmation would be good. I will send the request to re after.

[editor_callfortesting.org]

In D17074#364062, @emaste wrote:

Please go ahead and test if you have time, a confirmation would be good. I will send the request to re after.

OK. Will do shortly.

[editor_callfortesting.org]

This comment was removed by editor_callfortesting.org.

[emaste]

This diff should address ping as well.

[editor_callfortesting.org]

In D17074#364065, @emaste wrote:

This diff should address ping as well.

See that. Sorry. Building.

[editor_callfortesting.org]

Ed, this builds and installs for me wth both pristine sources that include only these, and my sources with my other build option changes updated to this for dhcpclient/ping.

The warnings work too:

make[5]: "/usr/srcpristine/sbin/dhclient/Makefile" line 48: warning: dhclient built without libcasper support

Looks good.

[emaste]

Seems D17040 did not generate a link above, so mention it again to add the xref.