My guess is that you are missing cxxtest (http://cxxtest.tigris.org/),
which is used to generate the test/run_tests.cc - specifically, you
need to have cxxtestgen.pl somewhere in you path. Let me know if this
doesn't work...
- Moshe
P.S. With any luck there will be two new moses-related codebases
released open-source in the next few weeks - one in C++ (based on
MOSES2) and my new one in Common Lisp (incomplete but under active
development by me). Please note that the current moses2 codebase is
woefully incomplete...