ref: 479a31ae8f4a361b101aa203aa1c0822137708d7
dir: /sys/src/cmd/upas/binscripts/mkfile.rc/
RCFILES=mail.rc all:Q: ; installall:Q: install ; install:V: cp mail.rc /rc/bin/mail safeinstall:V: cp mail.rc /rc/bin/mail safeinstallall:V: cp mail.rc /rc/bin/mail clean:Q: ; nuke:V: rm -f /rc/bin/mail