MEX files with gnuwin32

This file is intended to explain how to install the Cygnus port of the gcc compiler so that it can be used to compile mex files within MATLAB 5 for windows. It is written for the b18 version of that compiler. In fact b19 has just been released, and I will update this file when we have some experience of the new release. There are two main advantages to using the Cygnus gcc over other c compilers. The first is that it free. The second is that the Cygnus environment emulates a considerable degree of Unix functionality within 32 bit Windows, so you may well be able to use the same c mex source files for matlab on Unix and NT/Windows 95.