Dear PPL Developers, I am currently working on my master thesis: "Abstract Model Interpretation" that applies abstract interpretation on fomal models of software systems. For implementing an abstract domain, I plan to use PPL for the handling of Polyhedra. Actually, we plan on accessing PPL from our Java code via a wrapper class in C++. Right now my problem is how to inlcude the PPL classes in my C++ project. I am using a Windows XP System with cygwin. 'Make' and 'make install' of the PPL source directory worked fine. However now I am unsure about how to actually include PPL classes (e.g. "Polyhedron") in a C++ project and also could find no further instructions in the user manual or the README and INSTALL files, provided. Maybe you can help me answering this question: - What is the intended usage of PPL? Should one just include "ppl.hh" and the created libraries? Right now, this yields error messages like:"... undefined reference to `Parma_Polyhedra_Library::Init::Init[in-charge]()' ...undefined reference to `Parma_Polyhedra_Library::Init::~Init [in-charge]()' " The libraries libppl.a, ..., were created by 'make install' and should be accessible to g++. However, it seems the linker is unable to find the used library functions. Your help will be much appreciated! With best regards, Ernst Sassen Diplomand Technische Universität München Lehrstuhl für Software & Systems Engineering