I just compiled scsh-0.5.0 under SunOS 4.1.3 (you should have just
received mail via the .notify target), and the compilation died
flaming about "no rule to make scsh/machine/signals1.o". I noticed
that signals1.c is missing in both the sunos and ultrix directories.
To make it compile, I just copied bsd/signals1.c into the sunos
directory. The only difference in signal numbers is that the SunOS
/usr/include/sys/signal.h has SIGLOST instead of SIGINFO. Without
learning more about scheme48/scsh signals I don't know if this will
matter or not (or how to fix it if it does matter).
If you are counting, I also compiled scsh on a laptop running FreeBSD
but it was not network-enabled at the time so it did not send
scsh-notifications any mail...