title: installing pecl - fatal error: 'php.h' file not found
body: <p>I'm trying to install PECL OAuth but I get an error message (I use macbook mountain lion).</p>
  
  <pre><code> In file included from /private/tmp/pear/temp/oauth/oauth.c:14:
  /private/tmp/pear/temp/oauth/php_oauth.h:20:10: fatal error: 'php.h' file not found
  #include "php.h"
       ^
  1 error generated.
  make: *** [oauth.lo] Error 1
  ERROR: `make' failed
  </code></pre>
  
  <p>Someone know how to solve it?</p>
  
  <p>Thanks,
  Nimi</p>