> (This is not a Cygwin build, but native Windows!)
> Maybe the Makefile and source could be changed so it would build with no
> changes in Mingw.
Yes. As the changes to "pico.h" and "math.c" look general enough, I
included them directly.
The rest (Makefile) I've put into a patch script "mingw.diff". Do you
think it is all right this way? I've released a new "miniPicoLisp.tgz",
so please check once more if you have time.