The compilation steps are: $ autoreconf -i $ ./configure $ make $ make install If you want to use the statistical ranking in the parser then you have to compile your grammar with the option '-probs=grammar.probs', where grammar.probs must contain a tab separated file with the probabilities for all functions in the abstract syntax. In order to enable the named entity recongizer for the ParseEngAbs grammar you also have to add the option '-literal=Symb' while compiling. Note For Mac OSX users ---------------------- The following is what I did to make it work on MacOSX 10.8: - Install XCode and XCode command line tools - Install Homebrew: http://mxcl.github.com/homebrew/ $ brew install automake autoconf libtool $ glibtoolize $ autoreconf -i $ ./configure $ make $ make install