Running Tahrpup (so, forked from Ubuntu Tahr) on a 32-bit machine, I gave up on the initial batch install and used the package manager to install all the individual packages (which were all in the repos, and all installed), but Boost will not build properly (./bootstrap.sh won't run).
Any ideas why sys/types.h, stddef.h and stdlib.h files aren't created?
I can't answer your specific question, but FYI mining was removed from Steem with Hard Fork 18. Thus all mining guides are out of date and there is no way to get mining working.