title: I can't install Gevent
body: <p>I need to install Gevent for python2.7 but after try almost all I still doesn't install it.<br>
  I have python 2.6.6 and here all work ok... but I need python2.7+ then I install python 2.7.9 and now have only problems...
  Before some part of my project work in python 2.6 ok, but now my project doesn't run witn 2.6 and 2.7, dunno why it's stop working with 2.6 but nvm I need it with 2.7 but.... I cant instal gevent, I have installed libevent-devel an greenlet but I can't instal gevent</p>
  
  <pre class="lang-sh prettyprint-override"><code># pip2.7 install gevent
  Collecting gevent
    Using cached gevent-1.0.1.tar.gz
  Requirement already satisfied (use --upgrade to upgrade): greenlet in /usr/local/lib/python2.7/site-packages (from gevent)
  Installing collected packages: gevent
    Running setup.py install for gevent
      configure: error: in `/tmp/pip-build-fpnLvN/gevent/build/temp.linux-x86_64-2.7/libev':
      configure: error: cannot run C compiled programs.
      If you meant to cross compile, use `--host'.
      See `config.log' for more details
      Running '/bin/sh /tmp/pip-build-fpnLvN/gevent/libev/configure &gt; configure-output.txt' in /tmp/pip-build-fpnLvN/gevent/build/temp.linux-x86_64-2.7/libev
      building 'gevent.core' extension
      ccache gcc -fno-strict-aliasing -g -O2 -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fPIC -DLIBEV_EMBED=1 -DEV_COMMON= -DEV_CLEANUP_ENABLE=0 -DEV_EMBED_ENABLE=0 -DEV_PERIODIC_ENABLE=0 -Ibuild/temp.linux-x86_64-2.7/libev -Ilibev -I/usr/local/include/python2.7 -c gevent/gevent.core.c -o build/temp.linux-x86_64-2.7/gevent/gevent.core.o
      In file included from gevent/libev.h:2,
                       from gevent/gevent.core.c:313:
      libev/ev.c:45:22: error: config.h: No such file or directory
      libev/ev.c:477:48: warning: "/*" within comment
      In file included from gevent/libev.h:2,
                       from gevent/gevent.core.c:313:
      libev/ev.c:1531: warning: ‘ev_default_loop_ptr’ initialized and declared ‘extern’
      In file included from gevent/libev.h:2,
                       from gevent/gevent.core.c:313:
      libev/ev.c: In function ‘ev_io_start’:
      libev/ev.c:3554: warning: suggest parentheses around arithmetic in operand of ‘|’
      libev/ev.c:4795:27: warning: "/*" within comment
      libev/ev.c:4796:27: warning: "/*" within comment
      error: command 'ccache' failed with exit status 1
      Complete output from command /usr/local/bin/python2.7 -c "import setuptools, tokenize;__file__='/tmp/pip-build-fpnLvN/gevent/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-Ruy7Xb-record/install-record.txt --single-version-externally-managed --compile:
      running install
  
      running build
  
      running build_py
  
      creating build
  
      creating build/lib.linux-x86_64-2.7
  
      creating build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/resolver_thread.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/socket.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/threadpool.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/util.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/__init__.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/monkey.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/queue.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/coros.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/server.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/_threading.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/thread.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/select.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/hub.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/fileobject.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/wsgi.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/pywsgi.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/event.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/greenlet.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/ssl.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/local.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/subprocess.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/threading.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/os.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/win32util.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/baseserver.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/lock.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/backdoor.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/pool.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/resolver_ares.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      copying gevent/timeout.py -&gt; build/lib.linux-x86_64-2.7/gevent
  
      running build_ext
  
      configure: error: in `/tmp/pip-build-fpnLvN/gevent/build/temp.linux-x86_64-2.7/libev':
  
      configure: error: cannot run C compiled programs.
  
      If you meant to cross compile, use `--host'.
  
      See `config.log' for more details
  
      Running '/bin/sh /tmp/pip-build-fpnLvN/gevent/libev/configure &gt; configure-output.txt' in /tmp/pip-build-fpnLvN/gevent/build/temp.linux-x86_64-2.7/libev
  
      building 'gevent.core' extension
  
      creating build/temp.linux-x86_64-2.7/gevent
  
      ccache gcc -fno-strict-aliasing -g -O2 -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fPIC -DLIBEV_EMBED=1 -DEV_COMMON= -DEV_CLEANUP_ENABLE=0 -DEV_EMBED_ENABLE=0 -DEV_PERIODIC_ENABLE=0 -Ibuild/temp.linux-x86_64-2.7/libev -Ilibev -I/usr/local/include/python2.7 -c gevent/gevent.core.c -o build/temp.linux-x86_64-2.7/gevent/gevent.core.o
  
      In file included from gevent/libev.h:2,
  
                       from gevent/gevent.core.c:313:
  
      libev/ev.c:45:22: error: config.h: No such file or directory
  
      libev/ev.c:477:48: warning: "/*" within comment
  
      In file included from gevent/libev.h:2,
  
                       from gevent/gevent.core.c:313:
  
      libev/ev.c:1531: warning: ‘ev_default_loop_ptr’ initialized and declared ‘extern’
  
      In file included from gevent/libev.h:2,
  
                       from gevent/gevent.core.c:313:
  
      libev/ev.c: In function ‘ev_io_start’:
  
      libev/ev.c:3554: warning: suggest parentheses around arithmetic in operand of ‘|’
  
      libev/ev.c:4795:27: warning: "/*" within comment
  
      libev/ev.c:4796:27: warning: "/*" within comment
  
      error: command 'ccache' failed with exit status 1
  
      ----------------------------------------
      Command "/usr/local/bin/python2.7 -c "import setuptools, tokenize;__file__='/tmp/pip-build-fpnLvN/gevent/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-Ruy7Xb-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-fpnLvN/gevent
  </code></pre>