title: error when installing memcache
body: <p>i am using this command to install memcache (it do not work for other extensions)<br></p>
  
  <pre><code>C:\php&gt;pecl install memcache
  </code></pre>
  
  <p>and it is the result :</p>
  
  <pre><code>downloading memcache-2.2.7.tgz ...
  Starting to download memcache-2.2.7.tgz (36,459 bytes)
  ..........done: 36,459 bytes
  11 source files, building
  WARNING: php_bin C:\php\php.exe appears to have a suffix .exe, but config variable p
  fix does not match
  ERROR: The DSP memcache.dsp does not exist.
  </code></pre>
  
  <p>i always get this error</p>
  
  <pre><code>ERROR: The DSP memcache.dsp does not exist.
  </code></pre>
  
  <p>what should i do?</p>