as disk space typically isn't a concern when crosscompiling, but
convenience and ability to debug is, change the strip and gzip defaults
. do not strip or gzip the binaries when crosscompiling
this makes it faster to rebuild and restart a compiled system, with
debugging info if so desired.
This decreases external dependencies for crosscompilation. Note that
these libraries are not built nor used by Minix itself.
Furthermore, the shell scripts that download the tarballs for these
libraries, gcc, binutils, and gmake now also support curl in addition
to wget.