build.mk abs.c asc.c asrt.c atn.c chr.c conversion.c hlt.c mki.c oct.c peek.c power.c exp.c log.c print.c io.c random.c read.c return.c sgn.c sin.c fif.e sqt.c fef.e stop.c string.c salloc.c swap.c trace.c write.c file.c error.c trap.c setline.e