#!/bin/rc
rfork e
awk '
BEGIN {
	x = 0
}
$1 == "Runemax" {
	if(tolower($1) == "0xffff")
		print ENVIRON["rune16bit"]
	else if(tolower($1) == "0x10ffff")
		print ENVIRON["rune20bit"]
}
END {
	print ENVIRON["rune16bit"]
}' </sys/include/libc.h