I am trying to build the memcached extension on OS X 10.9 Mavericks for use with the built in PHP 5.4, initially I tried pecl install memcached but that threw the following.

checking for zlib location... configure: error: memcached support requires ZLIB. Use --with-zlib-dir=<DIR> to specify the prefix where ZLIB headers and library are located
ERROR: `/private/tmp/pear/install/memcached/configure' failed

So I created a tmp directory and executed pecl download memcached, unzipped the code and cd'd to the appropriate directory.

Trying to phpize it returned the following:

grep: /usr/include/php/main/php.h: No such file or directory
grep: /usr/include/php/Zend/zend_modules.h: No such file or directory
grep: /usr/include/php/Zend/zend_extensions.h: No such file or directory
Configuring for:
PHP Api Version:        
Zend Module Api No:     
Zend Extension Api No:  

I had brew installed zlib a while ago and pointed ./configure at my installation. ./configure --with-zlib-dir=/usr/local/Cellar/zlib/1.2.8 I was greeted with the following error message:

checking for session includes... configure: error: Cannot find php_session.h

So now I'm wondering the best course of action here... /usr/include/ doesn't exist at all... is this a Mavericks thing? I don't remember having this problem in 10.8 at all.

I could try brew installing php-devel but I presume that isn't going to be the right version of what I need? Any help would be greatly appreciated here


locate php_session.h reveals


should I just ln -s this to the expected location or is there some way to do this via XCode? I have the command line tools installed...


run xcode-select --install to install the XCode5 Command Line Tools, then sudo pecl install memcache. You should be good to go.

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    • Holy cow, this worked for me too after an hour of searching. Just for Google sake - this also solved a problem of trying to install apc and getting the error message: /private/tmp/pear/install/APC/apc.h:61:10: fatal error: 'php.h' file not found.
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    • If code-select --install doesn't work for you, you can download them as follows: Open up Xcode In the application menu item "Xcode" select Open Developer Tool > More Developer Tools... This takes you to a site with a bunch of software. Go ahead and download and install "Command Line Tools (OS X Mavericks) for Xcode - Late October 2013". (Copied from discussions.apple.com/message/23548005#23548005)

Warm tip !!!

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