Add support for using `RTLD_NOLOAD` with `dlopen` on Haiku.
While not specified in POSIX, this option is widely available (both
GNU/Linux and BSD) and is the only way to atomically check if a shared
object has been loaded.
Change-Id: I061332307d76c84f6a2abb6f92c4ed964bd90a1e
Reviewed-on: https://review.haiku-os.org/c/haiku/+/9161
Reviewed-by: waddlesplash <[email protected]>
Tested-by: Commit checker robot <[email protected]>
Reviewed-by: Jérôme Duval <[email protected]>