I have an idea for you Bo. Instead of specifying "extra_inc_path=d:/mingw/include extra_lib_path=d:/mingw/lib" it would be better to specify "with_mingw=d:/mingw". Then Scons could add automatically the include and lib paths. _And_ Scons could search the required dll in "d:/mingw/bin/".
Agreed. Can I leave this to you as a Python exercise? It is time for you to read the Python tutorial (You do not even need that for this change.) BTW, have you tried the updated system? If possible, you can record the compiling time and post to the comparison thread. Bo