#!/bin/rc

flag e +

fn checkstatus {}

posix_defines=`{mktemp}
checkstatus

fn sigexit {
	status=() rm $posix_defines
}

awk '{if($1 == "#define") print $2 ; if($2 == "#undef") print $3}' include/config-posix.h >$posix_defines
defines=`{awk '{if($1 == "#undef") print $2}' $1 | grep -F -x -v -f $posix_defines}
checkstatus

printf '#undef %s\n' $defines