BEGIN { process = 1 }

/NBCOMPAT template section follows\./ { process = 0 }

/^#[ 	]*define[ 	]+PACKAGE_.*/ {
	if (process == 1) {
		print "/* " $0 " */";
		next;
	}
}

/^#[ 	]*define[ 	]+/ {
	if (process == 1) {
		guard = $0;
		sub("^#[ 	]*define[ 	]+", "", guard);
		sub("[ 	]+.*", "", guard);
		print "#ifndef " guard;
		print $0;
		print "#endif";
		next;
	}
}

{ print }