title: Mac OS X Lion and Xcode upgraded: missing headers and libs
body: <p>After upgrading to Lion, <em>and</em> upgrading Xcode, make can't seem to locate headers and libs. I looked in /usr/include. The only thing in there was 'parallels-server'. So, I renamed /usr/include to /usr/include.old, and made a symlink to:</p>
  
  <p>/Developer/SDKs/MacOSX10.6.sdk/usr/include/</p>
  
  <p>This is pretty evil. But, make can now find headers. Still can't locate libs (e.g., lcrt1.10.6.o).</p>
  
  <p>What is the correct way to solve both the include and lib problems?</p>
  
  <p>Thanks!</p>