Following a suggestion from George, I changed the mex option LDFLAGS for *_dynamic.c to make the Dynamic function public. This was necessary as a temporary fix for kordpert. This most likely restricts the use fof USE_DLL to gcc compilers, but as nobody seems to use the option .... The ultimate solution will be to use Ferhat's bytecode solution and to dispense the users to have to use a compiler
Best
Michel