<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 -j 7</userinput>
running with -j 7
scons: `.' is up to date.
% <userinput>export NUM_CPU="4"</userinput>
% <userinput>scons -Q -j 3</userinput>
running with -j 3
scons: `.' is up to date.
</screen>
