Re: [mosquitto-dev] why is librt needed?

[Greg Troxel <gdt@xxxxxxxxxx>]

Frank Pagliughi <fpagliughi@xxxxxxxxxxxxxx> writes:

> Apologies for the delay on the follow-up. Ran out of town for a few days...

absolutely fine!  many others have the same sorts of feelings.

>> Thanks.  So you are saying that the only thing mosquitto needs that
>> might be related to "POSIX realtime" is clock_gettime and friends.
>
> I didn't do an extensive search, but did a quick grep of the mosquitto
> sources for some arcane stuff, like POSIX message queues (mq_*) and
> semaphores, came up empty.  But clock_gettime() was in there.
>
> On my Linux distro (Mint 22) the /librt.a /archive is just an empty
> stub of a library. There's nothing in it. I assume they left it in
> there to appease all the build systems that still include it.

I think we've arrived at

  there is no longer any reason to include -lrt on any platform

  having code to add it just adds chaos, and therefore we should remove
  it

  if there's some specific platform that turns out to need it, we
  can add it *just for that platform* so we keep the general case
  leaner.


Does anybody disagree?