calls which are not supported on Linux and therefore cannot be
handled by the rump kernel side syscall emulation (not that they'd
be present in the calling binaries anyway).
yesterday on powerpc broke overnight. Apparently adding one more
function before the call to dlsym() fixes things again. I hope
I don't have to add another one tomorrow ....
module which is compiled -fno-optimize-sibling-calls instead of
trying to fool the optimizer in various ways in the trampoline.
thanks to yamt for the tip
