I've been working on getting custom externals to work with Mingw. I've followed the instructions in the cygwinHowTo, and I get successful compilation, but I believe I'm having trouble with the cygwin1.dll. I have heard some people say that different versions of this DLL cause varying problems and crashes in Max (which I have been experiencing). Naturally, I have been trying to use -mno-cygwin to use only system libraries, and am getting successful compilations. However, I still get crashes, and using objdump on my MXE shows that some references to cygwin libraries still exist. One of you posted a link that said this is because the proper mingw libraries are not present, and that I must download these to make it work. I have looked a good deal, and I am not sure where I can get these libraries. They don't seem to be available through the cygwin setup utility. Any ideas?