How to add PECL source files (NOT binary modules) to Acquia hosting.

Add PECL library to hosting

#!/bin/bash

$ pear install Net_SmartIRC
downloading Net_SmartIRC-1.0.2.tgz ...
Starting to download Net_SmartIRC-1.0.2.tgz (184,705 bytes)
........................................done: 184,705 bytes
install ok: channel://pear.php.net/Net_SmartIRC-1.0.2

# Now the class is downloaded to my local include path.

# Get the local include path...
 $ php -r "echo ini_get('include_path');"
.:/Applications/MAMP/bin/php/php5.3.14/lib/php
# And copy the downloaded files to my Acquia repository.
$ cp -r /Applications/MAMP/bin/php/php5.3.14/lib/php/Net ~/Sites/camerontod/library/

# Now commit and push.
$ cd ~/Sites/camerontod
$ git add library/
$ git commit -m 'Added SmartIRC library from PECL.'
$ git push