Hello. Thanks God! After three weeks I was able to compile and run HOpenGL. There are a lot of mails in my digest about this topic, I'll try to reply all simultaneously :). I can't assure this steps are the only ones because my installation has a week of incremental changes. This is intended to work with Cygwin + GHC 5.04.2 + GreenCard 2.04 on WinXP SP1. I have a full install of cygwin, but I suppose this is not necessary. To get it working I follow this steps (after a million failures): - install cygwin, ghc... - Unzip the GL headers, missing in GHC: http://haskell.org/HOpenGL/releases/OpenGL-includes.zip in GHC dir - Follow the steps in http://www.informatik.uni-muenchen.de/~Sven.Panne/cygwin/opengl_glut.html I've installed precompiled files only (.a). Finally I ran the test and GLUT works (!!!). Maybe it works all this time, I don't know. - ./configure && make depend - Open 'config.mk' generated by ./configure, and add/replace X11/gl lib list [-lGLU, -lGL...] with win32 ones: [-lglut, -lglut32, -lglu32, -lopengl32...] - comment the CFLAGS=-L/usr/x11r6/lib. It seems that cygwin gcc doesn't like... If you get headers missing, copy them to some default dir (maybe /usr/include) - make all - make install when everything worked I was disturbed more than the first time that failed After this nightmare, I have drawn some conclusions: - OpenGL libraries that works (for me) are WIN32 dlls (HW accel???). All the time I thinked I was working with X11/GL. - Install scripts doesn't work under cygwin (for me), I think these are fixed to X11/GL, that doen't work (by default) on cygwin. Thanks everybody for help. You'll get more news next week (Simon). Manuel. ___________________________________________________ Yahoo! Postales Felicita las Navidades con las postales más divertidas desde http://postales.yahoo.es