> Most modern Linux distributions optimize dynamic library load using
quoted text
> prelinking; 4.0 and later have a comparable idea implemented
> ('prebind'), but in a way that does not interfere with OpenBSD's
> security features. This is not enabled by default (I'm not sure why not,
> and would be very grateful if anybody would tell me, BTW),

The pkg tree is not yet ready to do the right thing for this, heck,
even the base is not fully prepared for this to be on by default.
Prebind appends an information block to the end of libraries, and
there are some more details which need to be considered, and handled.

Furthermore, anytime you did a 'make build' of your system, the prebind
information changes in that information block, and when any of it is
invalid, it ignored, and you are right back in the un-optimized mode.
That's safe, and fine, but there are issues.

Like everything else in OpenBSD, we make it available early, and then
we turn it on when we are confident.  You don't even need to know the
above details -- just trust we are making the right decisions.