Change third line in Makefile to squelch all the 47 warnings
COPTS = -O1 -c99
Change last line in make.common:
$(CC) $(COPTS) -o $@ tools/sinustab.c -lmieee
Also, I had trouble with the existing vlink included in VBCC package. It choked on some switch, -brawseg or something. Anyway compiling the latest vlink fixed that.