title: CMake .. produces output in parent directory
body: <p>I'm trying to build <a href="http://boringssl.googlesource.com/boringssl/" rel="nofollow">BoringSSL by Google</a>. The BUILDING file instructions clearly indicate that the output should go under the build directory.</p>
  
  <p>I have a directory <code>project</code>, and under it I've created <code>build</code>. There is a CMakeLists.txt file under <code>project</code>, and I would like it to build inside the <code>build</code> directory. However, when I run <code>cmake ..</code> from inside <code>build</code>, the makefile is produced in the <code>project</code> directory instead of the current <code>build</code> directory.</p>
  
  <p>Most instructions I found seem to indicate that the output of cmake goes into the current directory, regardless of where CMakeLists.txt is located. What am I doing incorrectly?</p>