title: Tips on reducing c++ linking time
body: <p>I have a project that takes about 8 seconds to link with g++ and ld.</p>
  
  <p>It uses a bunch of static libraries, most of the code is c++.</p>
  
  <p>I'm interested in a general list of tips on how to reduce link time.
  Anything from "dont include debug symbols" to "make your code less spagetti"</p>