fix hash function computation for symbol table on 16-bit machines

enable aliases to self-reference themselves correctly.

changes to work under a V6 system -- mostly compilation flags

break some configuration into conf.h -- simplifies makefile changes
on different machines. But there are still conditional libraries, so
this may not be a good idea.....

fix bug in file modes when mailing to files that didn't exist before;
add an 'F' line to the .cf file that will read class entries from
another file, given a scanf string to do the parsing.

fix problem with using macros in rules; change configuration to send
different flags when destined for arpanet vs. berknet hosts, etc.

finally make suppression of sender in mailing lists work -- this version
also works correctly on simple aliases.

fix suppression of from address in mailing lists.

don't let a mailer ever execute as root (that should solve the
security problems!) -- essentially just map root into someone else.
Adds yet another configuration variable (should this be in the .cf f

don't let a mailer ever execute as root (that should solve the
security problems!) -- essentially just map root into someone else.
Adds yet another configuration variable (should this be in the .cf file?

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take underscore as well as space to separate parts of a person's
full name. Dot notation should be made to work someday also.

have .forward ownership stick harder than :include: ownership:
this prevents cretins from using writable root files for nastiness.
all this is pointless if /usr/lib/aliases is writable though....

be REALLY clever and inherit uid/gid from owner of :include:
files also... solves problem of alias to non-secure file

last delta was too paranoid -- this increases the number of
cases that work (but is still safe -- I hope)

run as the user forwarding mail after a .forward operation;
fix a bug in .forwarding that caused recursive expansion;
restrict mail to programs, files, and with :include: for security
reasons.

check MAXATOM overflow; increase MAXATOM value

fix but in mailers that only take one address at a time

match on full name for local users

change From: processing to reduce the number of Original-From:
lines; change allocation of global variables.

fix up umask; allow setuid on files to take recipient owner;
factor some configuration info into conf.c

add auto-rebuild on alias database; fix some aliasing bugs;
add statistics to rebuild; slight code restructuring; change
version handling one last (?) time

add NOTUNIX compile flag to turn off UNIX "From " line processing

cleanup, commenting, linting, etc.

improve "version:" entry in makefile; fix -em (mail back errors) option

fix $u argument processing bug (happened in uucp); .cf file cleanup

collect mail statistics; minor configuration changes