cc -o bpslx -Bstatic \
  -DBPSSIZE=3500000 bps.c bpsheap.c echo.c file-status.c float.c \
   os-hooks.c pslextras.c pwd-fn.c sigs.c unix-io.c \
   -DLINUX main.o dmain.o -L/usr/lib -lm 

