Add i386_get_gsbase, i386_set_gsbase since old libc doesn't have the functions, otherwise user ports have to be rebuilt.
Add i386_get_gsbase, i386_set_gsbase since old libc doesn't have the
functions, otherwise user ports have to be rebuilt.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase