title: Is it required to build LLVM in order to build hipSYCL?
body: <p>I'm running Centos 7 and am trying to build hipSYCL (see <a href="https://github.com/illuhad/hipSYCL/blob/develop/doc/installing.md" rel="nofollow noreferrer">here</a>)</p>
  <p>The issue is that hipSYCL needs to have cmake info from the LLVM build (via the LLVM_DIR cmake variable).
  This is problematic for me because building LLVM requires a massive 35Gb for the libraries and exes. I don't have that much memory to spare.</p>
  <p>I did find a build of llvm-toolset-8.0 online for Centos 7 and installed it, but to my surprise, that didn't seem to work with LLVM_DIR because there's no cmake files (since I didn't build it locally).</p>
  <p><strong>So, my question would be, is there a way to build hipSYCL using pre-built LLVM-clang?</strong></p>
  <p>If I'm missing or misunderstanding something, I'd appreciate any help.</p>