title: CMake generator expression equivalent in premake?
body: <p>I have this command here that I want to run in a build rule</p>
  <pre><code>vendor/shader-compiling/fxc.exe /nologo /Emain /Tvs_5_0 /Od /Zi /Fo assets/shaders/hlsl/%(Filename)_vs.cso /Fd %{cfg.buildtarget.directory}/%(Filename)_vs.pdb assets/shaders/hlsl/%(Filename)_vs.hlsl
  </code></pre>
  <p>and in release mode I want to not include the <code>/Od</code> option. In CMake I would use a generator expression: <code>$&lt;$&lt;CONFIG:Debug&gt;:/Od&gt;</code></p>
  <p>How would I achieve the same thing in premake?</p>
  <p>Thanks in advance.</p>