Commit Briefs
portable: handle sys/tree.h
Unfortunately, MacOS doesn't provide sys/tree.h -- so the compat check for this must happen portably.
portable: remove sha1.h include
This is searched for portably.
move functions which open objects into new file object_open_privsep.c
For the future, this will make it possible to provide alternative implementations of functions now stored in object_open_privsep.c. This will probably be needed by future gotd(8) which runs inside a chroot(2) environment and without the "exec" pledge(2) promise, making it impossible to run libexec helpers on the fly. Details of this design are not yet settled, but moving functions into a separate compilation unit won't hurt in any case.