title: Aircrack Ch: -1 Issue on Arch Linux
body: <p>Currently running <a href="http://en.wikipedia.org/wiki/Arch_Linux" rel="nofollow">Arch Linux</a>, I decided to install <a href="http://en.wikipedia.org/wiki/Aircrack-ng" rel="nofollow">Aircrack-ng</a> and try it out on my own wireless network. So I installed it, and I get an error upon Aireplay that states something along the lines of</p>
  
  <blockquote>
    <p>Either patch this, or use the flag --ignore-negative-one</p>
  </blockquote>
  
  <p>So I used the flag at first. It seems to work, but I can't get a handshake. This might just be me, but I wasn't sure. So I decided to find that patch. I went to Aircrack's website and found it. I followed the instructions and it was fine up until "make". At that point, it outputted: </p>
  
  <pre><code>config.mk:199: "WARNING: CONFIG_CFG80211_WEXT will be deactivated or not working because kernel was compiled with CONFIG_WIRELESS_EXT=n. Tools using wext interface like iwconfig will not work. To activate it build your kernel e.g. with CONFIG_LIBIPW=m."
  make -C /lib/modules/2.6.38-ARCH/build M=/home/kyle/Desktop/compat-wireless-2011-05-16 modules
  make: *** /lib/modules/2.6.38-ARCH/build: No such file or directory.  Stop.
  make: *** modules Error 2
  </code></pre>
  
  <p>What can I do to fix this so I can use Aircrack?</p>
  
  <hr>
  
  <p><code>uname -r</code> outputs "2.6.38-ARCH" (without quotes).</p>