ref: 81f867f4fb3d7fd495be3282a01d2e4a9b1a56fd dir: /sys/src/9/pc/pcmkfile/
PCFILES=`{../port/mkfilelist ../pc} ^($PCFILES)\.$O:R: '../pc/\1.c' $CC $CFLAGS -.I. ../pc/$stem1.c