This is so it can be shared with Qt.
If, for some reason, we have to cut another source tarball for
3.4.0, then this will be included. Otherwise, this will
turn out to be a post-3.4.0 patch.
Unfortunately a couple of glitches were encountered during the build of
the DOS binary.
Also, somewhere along the way the ability to separate the debug info
for the win32 tty binary into its own PDB file was removed from
Makefile.msc. I wasn't aware of that until I went to build the binary,
and discovered that I had no PDB file to stow away for bug
reports.
