Added makefile that can build all five ROM versions, as smc (with header) and sfc (headerlesss), and which verifies the ROMs using known sha1sum values. Tested only on linux but it just uses standard GNU utilities so it should also work e.g. in cygwin.
Unfortunately only the JP and US versions currently match their known sha1sum values, the other three versions do not.
Added makefile that can build all five ROM versions, as smc (with header) and sfc (headerlesss), and which verifies the ROMs using known sha1sum values. Tested only on linux but it just uses standard GNU utilities so it should also work e.g. in cygwin.
Unfortunately only the JP and US versions currently match their known sha1sum values, the other three versions do not.