The following are the prerequisites to build PySide in Linux:
CMake version 2.6.0 or higher [http://www.cmake.org/cmake/resources/software.html]
Qt libraries and development headers version 4.6 or higher [http://origin.releases.qt-project.org/qt4/source/qt-everywhere-opensource-src-4.8.4.tar.gz]
libxml2 and development headers version 2.6.32 or higher [http://www.xmlsoft.org/downloads.html]
libxslt and development headers version 1.1.19 or higher [http://xmlsoft.org/XSLT/downloads.html]
Python libraries and development headers version 2.5 or higher [http://www.python.org/download/]