There was a post-3.6.2 discussion on a forum where someone had
tried to copy the NetHack 3.6.2 exe file overtop of an
existing NetHack 3.6.0 playground, and then try to run it.
We have never suggested trying that, nor do we attempt to
provide any backward or forward compatibility between the
supporting files found in nhdat that would allow that. Any
particular version of NetHack expects to have matching
support files designed and matched to that version.
This adds optional support for helping to prevent the
opening of nhdat containing support files from an
unmatched version of NetHack.
If you #define VERSION_IN_DLB_FILENAME in your
platform's include/*conf.h file, it will use a
name such as nhdat362, instead of plain nhdat, and
will exit more gracefully than the fault/crash
mentioned in the discussion if it doesn't find the
file it is looking for.
Developers - please note that if you do
to cause NetHack to look for an nhdat* file with
the version info appended to the name, you will likely
have to modify your build/clean/spotless mechanics
beyond the C compile itself to properly deal with the
new generated file name.
I'll push a formatting guide at some point. There may still be
outstanding changes, but please feel free to resolve those as you arrive
a them.
To the best of my knowledge, there is no changes to the actual code
content, but the formatter does have the occasional bug. If you run into
an issue, please fix it!
Pat noted that I neglected to drop the SCCS lines on the files I've been
committing, so clean up those and any others I could find where the SCCS
line date is out of date.
The latest Micrsoft compilers complain when a function is
assigned to a function pointer, and the function's argument
list does not match the prototype precisely.
It was evem complaining about the difference between this:
int x()
{
[...]
}
and a prototype of
int x(void);
when assigning that function's address to a function pointer.
This quiets those warnings, without suppressing the mismatch
check altogether for more serious mismatches.
Although the overlay stuff is destined to be
removed someday, this patch just makes the
use of STATIC_DCL, STATIC_OVL consistent
in the trunk.
[As a side pointless experiment, I was able
to build a working 8086 port of 3.4.2 after
this change that worked correctly in limited
testing right up until it came time to enter
Ft. Ludios., where it couldn't allocated the
required amount of memory.]
The NOCWD_ASSUMPTIONS conditional code allows readonly
parts of NetHack to be separated from areas that require write-access.
This allows the recent panic log needed a prefix.
