DEC's automounter, amd

[Michel Fingerhut]

The DEC automounter caused us weird problems: we were unable to mount
directories that were exported from NeXTs and and 750 running 4.3+NFS.
It finally turns out that DEC's automounter had to be compiled with a
-DOLDMOUNT.  Many thanks to our local DEC support who let me glance at
the sources, where I found this.  Now it works fine.

Whatever this is, it means that DEC changed the protocol (as they did
for talk) without mentioning it anywhere accessible to mortal users
without sources, and that in order to be compatible with the rest of the
world, you have to go to the so called "old" version.