Adding terminfo files from ancient Unix

[Parzival Wolfram]

Are terminfo definitions still being added for/from ancient Unix 
flavors? I'm running Solaris 7 i86pc (i486-pc-solaris2.7) and the 
"AT386" terminfo file, defining the textmode shell on the physical 
machine, is not present as of ncurses-6.5 (along with several other 
files.) Would these be appropriate to add to ncurses, either directly 
from Solaris or remade based on the infocmp output? infocmp and toe do 
seem to parse them, both on the Solaris box and on a modern Linux machine.