title: npm install zmq fails
body: <p>I tried <code>npm install zmq</code> and I got:</p>
  
  <pre><code>make: Entering directory '/home/lucas/dir/node_modules/zmq/build'
    CXX(target) Release/obj.target/zmq/binding.o
  ../binding.cc:28:17: fatal error: zmq.h: No such file or directory
  compilation terminated.
  zmq.target.mk:94: recipe for target 'Release/obj.target/zmq/binding.o' failed
  make: *** [Release/obj.target/zmq/binding.o] Error 1
  make: Leaving directory '/home/lucas/dir/node_modules/zmq/build'
  gyp ERR! build error 
  gyp ERR! stack Error: `make` failed with exit code: 2
  gyp ERR! stack     at ChildProcess.onExit (/usr/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:276:23)
  gyp ERR! stack     at emitTwo (events.js:106:13)
  gyp ERR! stack     at ChildProcess.emit (events.js:191:7)
  gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)
  gyp ERR! System Linux 4.4.0-59-generic
  gyp ERR! command "/usr/bin/nodejs" "/usr/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
  gyp ERR! cwd /home/lucas/dir/node_modules/zmq
  gyp ERR! node -v v7.4.0
  gyp ERR! node-gyp -v v3.4.0
  gyp ERR! not ok 
  npm WARN projectName@1.0.0 No repository field.
  npm ERR! Linux 4.4.0-59-generic
  npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "install" "zmq"
  npm ERR! node v7.4.0
  npm ERR! npm  v4.0.5
  npm ERR! code ELIFECYCLE
  
  npm ERR! zmq@2.15.3 install: `node-gyp rebuild`
  npm ERR! Exit status 1
  npm ERR! 
  npm ERR! Failed at the zmq@2.15.3 install script 'node-gyp rebuild'.
  npm ERR! Make sure you have the latest version of node.js and npm installed.
  npm ERR! If you do, this is most likely a problem with the zmq package,
  npm ERR! not with npm itself.
  npm ERR! Tell the author that this fails on your system:
  npm ERR!     node-gyp rebuild
  npm ERR! You can get information on how to open an issue for this project with:
  npm ERR!     npm bugs zmq
  npm ERR! Or if that isn't available, you can get their info via:
  npm ERR!     npm owner ls zmq
  npm ERR! There is likely additional logging output above.
  
  npm ERR! Please include the following file with any support request:
  npm ERR!     /home/lucas/dir/npm-debug.log
  </code></pre>
  
  <p>Here's the pastebin of that <code>npm-debug.log</code>:</p>
  
  <p><a href="http://pastebin.com/UGLDEWin" rel="nofollow noreferrer">http://pastebin.com/UGLDEWin</a></p>
  
  <p>Does anybody have any idea of what's happening? Seems like error in the compilation or so. As you see, my nodejs is version 7.x, not an old one. And NPM is 4.x, should work, right?</p>