Assorted basic legacy code fixes - ctype.h stuff, implicit int, use
standard headers, etc. "time_t" is not "long". Don't issue own
declarations of standard functions. Should fix Solaris build.
Add hacks to (hopefully) fix MacOS build.
add a bit of a hack that should fix or advance the MacOS build
Fix tautological comparison and (maybe) macos build.
Add platform code for MacOS.
Extend dfly patch to macos: stdout is not necessarily a compile-time
constant.
Calling time() requires <time.h>. My fault, I think, and/or NetBSD has
or had a namespace pollution issue exposing time.h improperly. Should
fix the MacOS build.

XXX: on MacOS the configure script concludes that stdlib.h, unistd.h,
XXX: and string.h are all missing. I have no idea why this would be
XXX: but someone with access to config.log needs to investigate.
This package for some reason thinks MacOS comes with DOS <conio.h>. It
doesn't.
Remove accidental global variable. On most Unix platforms such
variables become commons and don't get noticed, but on platforms
without commons or with commons disabled, this results in a multiply
defined symbol.

Should fix MacOS build.
This is too old to support MacOS.
Let's try using the pkgsrc config for MacOS. If it doesn't work, which is
likely, we don't lose very much.
Instead of trying to make a list of OSes on which to avoid mucking
with sys_nerr, just remove all the references to sys_nerr.

Should fix MacOS build.
Remove references to cuserid(); it doesn't exist on MacOS and it's
useless everywhere anyway.
yrolo
add errno.h for macos build
add missing libX11 buildlink; PKGREVISION -> 9.
blt
Add missing openssl buildlink, appeared in linux bulk build
USE_TOOLS+=yacc, seen in linux build
Use stdlib.h instead of declaring own malloc.