The freeze unblock has been denied.
Some extra data points: * the patch fixes FTBFS on powerpc too, and on a 32-bit kernel the ioctls work (as expected). I suspect m68k should be same. * armhf userspace on an arm64 kernel builds but doesn't work Ie, the build failure and ioctls not working seem to be orthogonal. -- Autotools hint: to do a zx-spectrum build on a pdp11 host, type: ./configure --host=zx-spectrum --build=pdp11

