title: "No acceptable C compiler found" when installing APC
body: <p>What do I need to do to get APC to work correctly, it seems I dont have a c compiler in the correct place or something similar to that? Also once it is install how do I verify that it is running correctly?</p>
  
  <pre class="lang-none prettyprint-override"><code>[root@ec2-user]# pecl install apc
  downloading APC-3.1.9.tgz ...
  Starting to download APC-3.1.9.tgz (155,540 bytes)
  .................................done: 155,540 bytes
  54 source files, building
  running: phpize
  Configuring for:
  PHP Api Version:         20090626
  Zend Module Api No:      20090626
  Zend Extension Api No:   220090626
  config.m4:180: warning: AC_CACHE_VAL(PHP_APC_GCC_ATOMICS, ...): suspicious cache-id,                     must contain _cv_ to be cached
  ../../lib/autoconf/general.m4:1974: AC_CACHE_VAL is expanded from...
  ../../lib/autoconf/general.m4:1994: AC_CACHE_CHECK is expanded from...
  config.m4:180: the top level
  config.m4:180: warning: AC_CACHE_VAL(PHP_APC_GCC_ATOMICS, ...): suspicious cache-id,     must contain _cv_ to be cached
  ../../lib/autoconf/general.m4:1974: AC_CACHE_VAL is expanded from...
  ../../lib/autoconf/general.m4:1994: AC_CACHE_CHECK is expanded from...
  config.m4:180: the top level
  Enable internal debugging in APC [no] : no
  Enable per request file info about files used from the APC cache [no] : no
  Enable spin locks (EXPERIMENTAL) [no] : no
  Enable memory protection (EXPERIMENTAL) [no] : no
  Enable pthread mutexes (default) [yes] : yes
  Enable pthread read/write locks (EXPERIMENTAL) [no] : no
  building in /var/tmp/pear-build-root/APC-3.1.9
  running: /var/tmp/APC/configure --enable-apc-debug=no --enable-apc-filehits=no --enable-    apc-spinlocks=no --enable-apc-memprotect=no --enable-apc-pthreadmutex=yes --enable-apc-    pthreadrwlocks=no
  checking for grep that handles long lines and -e... /bin/grep
  checking for egrep... /bin/grep -E
  checking for a sed that does not truncate output... /bin/sed
  checking for cc... no
  checking for gcc... no
  configure: error: in `/var/tmp/pear-build-root/APC-3.1.9':
  configure: error: no acceptable C compiler found in $PATH
  See `config.log' for more details.
  ERROR: `/var/tmp/APC/configure --enable-apc-debug=no --enable-apc-filehits=no --enable-apc-    spinlocks=no --enable-apc-memprotect=no --enable-apc-pthreadmutex=yes --enable-apc-    pthreadrwlocks=no' failed
  [root@ec2-user]#
  </code></pre>