* i386-sol2-tdep.c (i386_sol2_gregset_reg_offset): New variable.
    (i386_sol2_init_abi): Initialize TDEP->gregset_reg_offset,
    TDEP->gregset_num_regs, TDEP->sizeof_gregset and
    TDEP->sizeof_fpregset.
    * config/i386/i386sol2.mh (XM_FILE): Set to xm-i386.h.
    (XM_CLIBS): Remove.
    (NATDEPFILES): Remove core-regset.o and corelow.o.
    * config/i386/i386sol2.mt (TDEPFILES): Add corelow.o.