http://www.php.net/manual/en/ref.pfpro.php

Anyone know how to compile PHP with the pfpro option?

Thanks!
m

Requirements
You will require the appropriate SDK for your platform, which may be downloaded from within the manager interface once you have registered.

Once you have downloaded the SDK you should copy the files from the lib directory of the distribution. Copy the header file pfpro.h to /usr/local/include and the library file libpfpro.so to /usr/local/lib.

Alternatively, you can extract the tarball from Verisign in one location, and reference it during build configuration with the --with-pfpro[=DIR] option: Example 1. Explicit Configuration

tar -zxf pfpro_sunsparc.tar.gz -C /usr/local/

./configure --with-pfpro=/usr/local/verisign/payflowpro/sunsparc