This way, when an error occurs, it will at least terminate the
session instead of requiring you to disconnect yourself.

This partially addresses issue 174, assuming it's actually telnets.

Apple GNU make treats unescaped # in variables as starting a comment.
But GNU grep >= v3.8 will spew a warning with an extra backslash there.

GNU grep >= 3.8 complains and it's highly confusing.
Thanks for sticking with it Dan_C.

Presumably, this is broken because I cross-compile.
Also, this is where I'm rewriting history to remove
the debug libs that were over 100M

...But Win64 isn't.  It crashes somewhere in the decoding function,
and I have no idea why... it doesn't seem to be because of the thread
thing.

I assume it's because of the cross-built win64 libs, but I can't really
be sure. :(

So, we can't use threads with these libs. :(
This is going to be a pain to build these due to the dependencies.

This can't happen, and it breaks the thread stuff.

Just statically link it here, I'm not interested in adding another
DLL into the archive, and there's no good reason to NOT support it.

An alternative to using PPM, relies on libjxl from the JPEG.
JPEG XL is a superior modern format that supports both lossy and
lossless compression and does an excellent job at both.

The format also supports multiple frames (ie: animation), so can
be used for Cool Stuff in the future.

As an example, a large image that is 130MB in PPM format is only
6.8MB in JPEG XL format using the default quality settings of
ImageMagick (whatever they are).

Commands are added.

This allows us to avoid needing a large number of extra libraries,
and it appears sRGB (ie: what we want) is the default anyway.

These are useful for trouble-shooting/experimenting with file share modes
and region locks, so make them easier to build.

Order of options no longer matters.

This also supports static linking for OSs that don't have sane ways
of sharing libraries system-wide.

With this, my fancy intro is quite usable...

Uses libjxl, makes the video demo more possible.

Does not yet have a feature test sequence, documentation, support
in the gmake build system, runtime linking, etc.  Just a quick
hack.

It also looks like I can parallize the decode, should should also
help things out.

Check and clear/invalidate node_socket while holding the node.dab record
lock.

This should fix the error reported by kk4qnb (KK4QBN)

Fix CID 516461

Fix CID 516462

Include O_CREAT access mode flag in opennodedat().

I experimented with excluding O_DENYNONE when the NM_CLOSENODEDAB flag is set
(to hopefully work-around MacOS Samba node.dab corruption issue), but that
didn't work with SBBSCTRL leaving the file open in SH_DENYNONE mode, so will
have revist that, but using a common open function helps.

Include a little more detail in 550 responses sent to clients too

I started seeing Windows 10.0 reported (without a build number) again on
Windows 11 (after a regular update), so changed the logic to always try/use
RtlGetVersion() except for Windows 7 where I saw it truncated the Service
Pack details.

This explains why Deon was still seeing time_t encoded time values.

This is a situation we can auto-correct and log a message when we do.

Could be helpful for debugging node status issues at some point

Bug