Once you've actually found the right syntax that makes the assembler just use
the default call type of the current memory model for both procedures (where
it's just "PROC" without anything else) and labels (where it's "LABEL PROC"),
these constants become completely unneccessary, even with TASM.
... yeah, just because ZUN decided to use the C file functions to read
reiiden.cfg for a change. OK, can we *finally* include master.lib's bgm.inc
now?