title: How to let make only compile but not link
body: <p>I'm using clang, llvm to compile MySQL and do some analysis. But the link stage is very time consuming(+5min) and I actually do not need the final executable. Only interested in several object files, which are successfully generated before the linking. </p>
  
  <p>What I tried is to export LD AR to /bin/true but it then cannot compile saying no rule to make target xx.a.
  In general, is there a way to modify the makefile(from automake) only <em>compile</em> but not link?</p>