<?xml version="1.0" encoding="UTF-8"?>
<screen xmlns="http://www.scons.org/dbxsd/v1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.scons.org/dbxsd/v1.0 http://www.scons.org/dbxsd/v1.0/scons.xsd">% <userinput>scons -Q hello</userinput>
cc -o hello.o -c -I. hello.c
cc -o hello hello.o
% <userinput>scons -Q hello</userinput>
scons: `hello' is up to date.
%     [CHANGE THE CONTENTS OF hello.h]
% <userinput>scons -Q hello</userinput>
cc -o hello.o -c -I. hello.c
cc -o hello hello.o
</screen>
