title: Compiling Error with sha3 & Ethereum Mist
body: <pre class="lang-none prettyprint-override"><code>Unhandled rejection Error: Error: npm exited with code 1
  Output:
  
  &gt; sha3@1.2.0 install /home/user/mist/dist_mist/app/node_modules/sha3
  &gt; node-gyp rebuild
  
  make: Entering directory '/home/user/mist/dist_mist/app/node_modules/sha3/build'
    CXX(target) Release/obj.target/sha3/src/addon.o
  sha3.target.mk:96: recipe for target 'Release/obj.target/sha3/src/addon.o' failed
  make: Leaving directory '/home/user/mist/dist_mist/app/node_modules/sha3/build'
  
  Error output:
  In file included from /usr/include/stdint.h:25:0,
                   from /usr/lib/gcc/x86_64-linux-gnu/5/include/stdint.h:9,
                   from /home/user/.electron-gyp/.node-gyp/iojs-1.4.15/deps/v8/include/v8.h:19,
                   from /home/user/.electron-gyp/.node-gyp/iojs-1.4.15/src/node.h:42,
                   from ../src/addon.cpp:1:
  /usr/include/features.h:367:25: fatal error: sys/cdefs.h: No such file or directory
  compilation terminated.
  make: *** [Release/obj.target/sha3/src/addon.o] Error 1
  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:258:23)
  gyp ERR! stack     at emitTwo (events.js:125:13)
  gyp ERR! stack     at ChildProcess.emit (events.js:213:7)
  gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:200:12)
  gyp ERR! System Linux 4.10.0-28-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/user/mist/dist_mist/app/node_modules/sha3
  gyp ERR! node -v v8.2.1
  gyp ERR! node-gyp -v v3.6.2
  gyp ERR! not ok 
  npm ERR! code ELIFECYCLE
  npm ERR! errno 1
  npm ERR! sha3@1.2.0 install: `node-gyp rebuild`
  npm ERR! Exit status 1
  npm ERR! 
  npm ERR! Failed at the sha3@1.2.0 install script.
  npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
  </code></pre>
  
  <p>On Ubuntu 16.04:
  I am getting this error after running <code>gulp --linux</code> in <code>~/mist</code>.
  I've tried researching for sha3 errors, I find similar posts, but cannot find a solution. </p>
  
  <p>What do I do to fix?  Thanks. </p>