From: "Richard Fateman" <fateman at cs.berkeley.edu>
It seems to me that not everyone needs to build Maxima on
Windows. Mostly just one person needs to do that.
Just to make sure everyone understand the sense of `build' under
discussion, this is the final creation of the downloadable installer
package. This needs to be done by one developer once per release
cycle (really a couple times to allow for testing). Selecting a
non-free product to build the Windows install package would not
prevent either developers or users from recompiling from source, since
that doesn't depend on the installation package.