These instructions are valid for UNIX-like systems (these steps have been run on various Linux distributions; Darwin; Cygwin). For native Windows compilation, see ../windows/INSTALL. You must first have completed the installation steps in ../tools/INSTALL or by running ../tools/install.sh (compiling OpenFst; getting ATLAS and CLAPACK headers). The installation instructions are: ./configure make depend make Note that "make" takes a long time; you can speed it up by running make in parallel, for instance "make -j 4" For more information, see documentation at http://kaldi.sf.net/ and click on "The build process (how Kaldi is compiled)".