+ Don't use our own "clean" and "depend" targets
+ "make depend" works
+ Only include each include path once on compile lines
+ Clean up include file names
+ Don't build a separate libdrive.a, just specify driver source files
+ Use "make print-objdir" instead of old "printf ... | make -f-"
+ Remove more unnecessary targets, variables and other cruft
Still builds identical bootblocks to 1.3.3 with gcc, still too large
with egcs.
dec_boot.h, dec_exec.h & dec_prom.h were copied via respository
copy to sys/arch/pmax/stand/libsa.