title: Unable to find lmdb while installing caffe with make all
body: <p><a href="http://i.stack.imgur.com/d9iAd.png" rel="nofollow">/usr/bin/ld: cannot find -lmdb
  collect2: error: ld returned 1 exit status
  Makefile:568: recipe for target '.build_release/lib/libcaffe.so.1.0.0-rc3' failed
  make: *** [.build_release/lib/libcaffe.so.1.0.0-rc3] Error 1</a></p>
  
  <p>How to get rid of this problem.</p>