title: Buildroot: install and build the toolchain only
body: <p>I want to install and build just the toolchain for my Buildroot project. <code>make help</code> suggests that the command <code>make &lt;options&gt; toolchain</code> should work; however, running that command simply returns <code>Nothing to be done for 'toolchain'.</code> and <code>output/host</code> is never created.</p>