There are warnings within the qt6 header files if c++20 is not used, for example:
usr/include/x86_64-linux-gnu/qt6/QtCore/qfuturesynchronizer.h:21:5: warning: use of the 'nodiscard' attribute is a C++20 extension [-Wc++20-attribute-extensions]
21 | Q_NODISCARD_CTOR_X("Use future.waitForFinished() instead.")
| ^
/usr/include/x86_64-linux-gnu/qt6/QtCore/qcompilerdetection.h:972:43: note: expanded from macro 'Q_NODISCARD_CTOR_X'
972 | # define Q_NODISCARD_CTOR_X(message) [[nodiscard(message)]]
| ^
1 warning generated.
qmake6 --version
QMake version 3.1
Using Qt version 6.8.3 in /usr/lib/x86_64-linux-gnu
gcc has recognized various "magic comments" for white-listing
occurrences of implicit fallthrough in switch statements for
a long time:
The range and shape of "falls through" comments accepted are
contingent upon the level of the warning. (The default level is =3.)
-Wimplicit-fallthrough=0 disables the warning altogether.
-Wimplicit-fallthrough=1 treats any kind of comment as a "falls through" comment.
-Wimplicit-fallthrough=2 essentially accepts any comment that contains something
that matches (case insensitively) "falls?[ \t-]*thr(ough|u)" regular expression.
-Wimplicit-fallthrough=3 case sensitively matches a wide range of regular
expressions, listed in the GCC manual. E.g., all of these are accepted:
/* Falls through. */
/* fall-thru */
/* Else falls through. */
/* FALLTHRU */
/* ... falls through ... */
etc.
-Wimplicit-fallthrough=4 also, case sensitively matches a range of regular
expressions but is much more strict than level =3.
-Wimplicit-fallthrough=5 doesn't recognize any comments.
Plenty of other compilers did not recognize the gcc comment convention,
and up until now the compiler warning for detecting unintended
fallthrough had to be suppressed on other compilers. That's because the code
in NetHack has been relying on the gcc approach, and only the gcc approach.
The C23 standard introduces an attribute [[fallthrough]] for the
functionality, when implicit fallthrough warnings have been enabled.
Several popular compilers already support that, or a very similar attribute
style approach, today, even ahead of their C23 support:
C compiler whitelist approach
--------------------------- -------------------------------------
C23 conforming compilers [[fallthrough]]
clang versions supporting
standards prior to
C23 __attribute__((__fallthrough__))
Microsoft Visual Studio
since VS 2022 17.4.
The warning C5262 controls
whether the implict
fallthrough is detected and
warned about with
/std:clatest. [[fallthrough]]
This adds support to NetHack for the attribute approach by inserting a
macro FALLTHROUGH to the existing cases that require white-listing, so
other compilers can analyze things too.
The definition of the FALLTHROUGH macro is controlled in include/tradstdc.h.
The gcc comment approach has also been left in place at this time.
Define some macros in include/tradstdc.h, for compilers that support
__attribute__((nonnull)), to assist in identifying which parameters
on functions are not supposed to be null pointers.
Next, for the majority of functions declared in include/extern.h, this
adds the appropriate macro that matches the actual use of each function's
parameters. The additions were done after performing some analysis.
These were the rules that were followed when determining which function
parameters should be nonnul, and which are nullable:
1. If the first use of, or reference to, the pointer parameter in the
function is a dereference, then the parameter will be considered
nonnull.
2. If there is code in the function that tests for the pointer parameter
being null, and adjusts the code-path accordingly so that no segfault
will occur, then the parameter will not be considered nonnull (it can
be null).
The use of the nonnull attributes allows the compiler to detect code in
callers of the function where a null parameter could get passed to the function.
If a warning is received the developer will have to do one of the following:
- If the null being passed to the function is now appropriate,
and the function should be able to expect a null parameter, then the
NONNULLxxx macro will have to be removed from the function's prototype.
or
- If the null being passed to the function is not appropriate,
correct the caller so it is not passing null.
or
- If the warning is about comparing to null, it may indicate an
unnecessary null check in the code involved. If it is deemed to be
unnecessary, it can then be removed.
Some static analysis tools apparently can work with the attribute, as well.
Following this, it was discovered that some functions were using one of the
(now) nonnull parameters in the first argument to the 'is_art(obj, ART)'
macro, which is defined like so:
=> #define is_art(o,art) ((o) && (o)->oartifact == (art))
That macro expansion inline resulted in a diagnostic warning because of the
'(o)' portion of the expanded macro, anywhere the macro was used with one of
the nonnull parameters. A test against null for a 'nonnull parameter' causes
a diagnostic warning.
To work around that, I replaced the is_art() macro with a function in
artifact.c, that accomplishes the same thing as the macro.
=> boolean
is_art(struct obj *obj, int art)
{
if (obj && obj->oartifact == art)
return TRUE;
return FALSE;
}
Some documentation...
These are the macros that have been defined for use when specifying the nonnull
parameters in a function prototype:
----------------------------------------------------------------------------
| Macro | Purpose |
+----------------+---------------------------------------------------------+
| NONULL | The function return value is never NULL. |
+----------------+---------------------------------------------------------+
| NONNULLPTRS | Every pointer argument is declared nonnull. |
+----------------+---------------------------------------------------------+
| NONNULLARG1 | The 1st argument is declared nonnull. |
+----------------+---------------------------------------------------------+
| NONNULLARG2 | The 2nd argument is declared nonnull. |
+----------------+---------------------------------------------------------+
| NONNULLARG3 | The 3rd argument is declared nonnull. |
+----------------+---------------------------------------------------------+
| NONNULLARG4 | The 4th argument is declared nonnull (not used). |
+----------------+---------------------------------------------------------+
| NONNULLARG5 | The 5th argument is declared nonnull. |
+----------------+---------------------------------------------------------+
| NONNULLARG7 | The 7th argument is declared nonnull (bhit). |
+----------------+---------------------------------------------------------+
| NONNULLARG12 | The 1st and 2nd arguments are declared nonnull. |
+----------------+---------------------------------------------------------+
| NONNULLARG13 | The 1st and 3rd arguments are declared nonnull. |
+----------------+---------------------------------------------------------+
| NONNULLARG123 | The 1st, 2nd and 3rd arguments are declared nonnull. |
+----------------+---------------------------------------------------------+
| NONNULLARG14 | The 1st and 4th arguments are declared nonnull. |
+----------------+---------------------------------------------------------+
| NONNULLARG134 | The 1st, 3rd and 4th arguments are declared nonnull. |
+----------------+---------------------------------------------------------+
| NONNULLARG17 | The 1st and 7th arguments are declared nonnull (this |
| | was a special-case added for askchain(), where the |
| | arguments are spread out that way. This macro |
| | could be removed if the askchain arguments in the |
| | prototype and callers were changed to make the |
| | nonnull arguments side-by-side). |
+----------------+---------------------------------------------------------+
| NONNULLARG145 | The 1st, 4th and 5th arguments are declared nonnull |
| | (this was a special-case added for find_roll_to_hit(), |
| | in uhitm.c, where the arguments are spread out that way.|
| | We can't just use NONNULLPTRS there because the 3rd |
| | argument 'weapon' can be NULL). |
+----------------+---------------------------------------------------------+
| NONNULLARG24 | The 2nd and 4th arguments are declared nonnull (this |
| | was a special-case added for query_objlist() |
| | in invent.c). |
+----------------+---------------------------------------------------------+
| NONNULLARG45 | The 4th and 5th arguments are declared nonnull (this |
| | was a special-case added for do_screen_description(), |
| | in pager.c, where the arguments are spread out that |
| | way. We can't just use NONNULLPTRS there because the |
| | 6th argument can be NULL). |
+----------------+---------------------------------------------------------+
| NO_NONNULLS | This macro expands to nothing. It is just used to |
| | mark that analysis has been done on the function, |
| | and concluded that none of the arguments could be |
| | marked nonnull.That distinguishes a function that has |
| | not been analyzed (yet), from one that has. |
+----------------+---------------------------------------------------------+
The NO_NONNULLS macro is meant to place a flag on the prototype to
make people aware that an assessed function was determined to not
be eligible for nonnull parameters. It expands to nothing.
Unfortunately, that macro was added partway through this exercise, so there
aren't many instances of it in the upper parts of include/extern.h, even though
the functions there were likely assessed and categorized as not having any
eligible nonnull parameters. It just never got any macro at all, in that case.
Following the parameter usage analysis that was done, the following was
noted:
Some NetHack functions have added a test to catch a passed null
parameter, and exit the function early as a result, or call
impossible(), and then exit. While that approach prevents segfaults
from dereferencing a null parameter, the early return is silent
(when impossible is not called anyway), and the function's true
purpose is not fulfilled. Also, the calling function may have no
awareness that the function did not complete its intended purpose,
in many instances.
Functions with such a test and early return, cannot have the parameter
declared 'nonnull', because the code to test for 'null' will cause a
diagnostic to be issued if the parameter is nonnull.
It might be good to revisit some of those functions and consider,
on a case by case basis, declaring the parameter nonnull in the
prototype, and the test/code-path commented out.
A bunch of new warnings appeared by default on macOS compiler provided with Xcode,
including on every usage of sprintf(). Suppress those for now.
The issues with utilizing WANT_ASAN=1 on the make command line with macOS seem
to be resolved in this latest version, so allow it to be specified. Don't specify
it if using a problematic clang version.
When the address sanitizer is in use for gcc, clang, or visual studio,
(-fsanitize=address) define the NetHack preprocessor symbol USING_ADDRESS_SANITIZER.
In addition to C99=1 on the make command line, also allow
C89=1 or C11=1 or C23=1.
NOTE: Those won't all lead to a successful build of NetHack,
and the use of C23=1 (-std=c2x) will only be valid on recent
compiler versions (clang-15, for one, accepts it).
CSTD can be manually set near the top of src/Makefile, util/Makefile
or by including c99=1 or C99=1 on the build make command line if
using the linux.370 or macOS.370 hints files.
1. remove all window interface bits from compiler.370, and have
the preceding include files set some variables to control
the behavior of compiler.370 when it comes to c++.
2. some more common Makefile lines into sys/unix/hints/include/multiw-3.370.
3. make it so you can pass cppregex=1 on the Make command line to build with
sys/share/cppregex.cpp instead of posixregex.c
4. fix sys/share/cppregex.cpp so that it will build with clang compiler
(required an additional header include). I don't know if it would have
worked with g++ without that change. The include can be placed into an #ifdef
block if there's an issue with the change on other compilers.
5. Anything that needs to compile using c++ (Qt, sys/share/cppregex.cpp) can
just ensure that CPLUSPLUS_NEEDED Makefile variable is set above the lines
in compiler.370 to ensure that things get set up for c++. It no longer
checks specifically for Qt. That is what sys/unix/hints/include/multiw-2.370
does now.
Add a 3rd multi-window include file that comes after compiler.370.
Relocate a small section of Makefile lines common to both macOS.370
and linux.370 to multiw-3.370.
Also relocate a section near the tail of compiler.370 that really
has nothing to do with compilers or compiler flags, but was
related to Qt which is one of the supported multi-window interfaces.
Now, the only usage of GCC_WARN is for the guard of PRINTF_F in wincurs.h.
This guard can be removed safely, as PRINTF_F is already used unconditionally in extern.h.
Report stated a -Wformat-nonliteral at line 612,
and a -Wformat-security at line 614
I was only seeing the latter, so I added the former to the
flags in sys/unix/hints/include/compiler.370. Some compiler
versions have that warning on by default internally and others
don't. If the format string isn't a string literal, there's no
inteference with printf argument checking because that only
operates on string literals.
Rename the recently added timestamp file used to throw away old qt
'moc' files from moc.qt5 or moc.qt6 to Qt5.h-t or Qt6.h-t and use
that to also throw away old qt_*.o when switching from Qt 5 to Qt 6
or vice versa. Temporarily the old names remain in Makefile.src's
'clean' target and in src/.gitignore but those will be removed soon.
Update 'make depend' to add the timestamp file to qt_*.o dependencies.
Have it generate rules to build qt_*.moc from ../win/Qt/qt_*.h instead
of using a template rule in hints/include/compiler.370. So building
the Qt interface doesn't require use of that hints file anymore and
someone reading Makefile.src won't have to know about it, but using
those hints will make their life easier.
Simplify the Qt timestamp handling portion of compiler.370. Only one
extra rule gets added when creating src/Makefile.
src/Makefile generated from sys/unix/Makefile.src that's been rebuilt
with 'make depend' got broken by uncommenting '#include "amiconf.h"'
in global.h. That file isn't in include/ but every object file now
depended on it and make didn't know what to do about that. Have
depend.awk treat it as a special case so that no object files depend
on it. That means that actually modifying it won't trigger a rebuild;
anyone fiddling with that will have to always do 'make clean' or
'touch config.h-t' after changing it. The alternative is to move it
from outdated/include/ back to include/.
In depend.awk, recent gawk complained that "\." wasn't a defined
escape sequence in regular expressions so it would be treated as ".".
That's exactly what is intended but change it to "[.]" to avoid the
warning. Similarly for one instance each of "\#" and '\"'. I also
tried changing "\/" to "[/]" even though that is a defined sequence
and doesn't trigger any warning. gawk accepted it but the awk that
comes with OSX choked on it so I changed it back to "\/".
This is an attempt to address the issue of switching from Qt 5 to
Qt 6 or vice versa on Unix without running 'make spotless'. Various
*.h files (but not all of them) in win/Qt/ are run through a program
called 'moc' to create new files *.moc that are included by *.cpp.
The problem is that the constructed files use the same names for Qt
5 or 6 but their contents apparently aren't compatible. This adds
rules (specific to GNU make) that use a pair of timestamp files to
track which version of moc made src/*.moc and to destroy them when
switching Qt versions in order to force their re-creation.
As it stands, a hints file which includes hints/include/compiler.370
is now required in order to build the Qt interface with the Unix
Makefiles. There's no change for platforms that don't use those and
I've no idea whether something comparable could be done for macOS
Xcode IDE.
The first time make is run with WANT_WIN_QT=1 after this is in place,
all the .moc files will be rebuilt and the subset of .cpp files which
include them will be recompiled. After that, the .moc files will be
rebuilt as needed--and only as needed--just like any other constructed
files.
The reason that the QT6.2 build on Linux was getting a warning
on qt_main.cpp, but the QT6.2 build on macOS was not, was
because of a difference in compiler flags between clang++ and g++.
clang++ was using the
-Wno-deprecated-declarations
and g++ wasn't, so add it.
djgpp cross-compiler was griping about several.
This also removes these lines from sys/unix/hints/include/compiler.370.
CFLAGS+=-Wno-format-nonliteral
CCXXFLAGS+=-Wno-format-nonliteral
-Wformat-nonliteral should not be incompatible with the printf
argument-checking capabilities on literal format strings and there
shouldn't be any new warnings created.
-- &< --
artifact.c: In function 'artifact_hit':
artifact.c:1309:23: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
1309 | mon_nam(mdef));
| ^~~~~~~
artifact.c:1328:17: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
1328 | pline(behead_msg[rn2(SIZE(behead_msg))], wepdesc, "you");
| ^~~~~
ball.c: In function 'drop_ball':
ball.c:896:17: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
896 | pline(pullmsg, "pit");
| ^~~~~
ball.c:899:17: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
899 | pline(pullmsg, "web");
| ^~~~~
ball.c:904:17: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
904 | pline(pullmsg, hliquid("lava"));
| ^~~~~
ball.c:908:17: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
908 | pline(pullmsg, "bear trap");
| ^~~~~
dig.c: In function 'liquid_flow':
dig.c:747:9: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
747 | pline(fillmsg, hliquid(typ == LAVAPOOL ? "lava" : "water"));
| ^~~~~
fountain.c: In function 'floating_above':
fountain.c:28:5: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
28 | You(umsg, what);
| ^~~
invent.c: In function 'hold_another_object':
invent.c:1018:17: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
1018 | pline(drop_fmt, drop_arg);
| ^~~~~
invent.c:1073:9: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
1073 | pline(drop_fmt, drop_arg);
| ^~~~~
invent.c: In function 'silly_thing':
invent.c:1811:9: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
1811 | pline(silly_thing_to, word);
| ^~~~~
lock.c: In function 'pick_lock':
lock.c:375:19: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
375 | pline(no_longer, "hold the", what);
| ^~~~~~~~~
lock.c:379:19: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
379 | pline(no_longer, "reach the", "lock");
| ^~~~~~~~~
lock.c: In function 'pick_lock':
lock.c:375:19: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
375 | pline(no_longer, "hold the", what);
| ^~~~~~~~~
lock.c:379:19: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
379 | pline(no_longer, "reach the", "lock");
| ^~~~~~~~~
mcastu.c: In function 'cast_cleric_spell':
mcastu.c:670:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
670 | pline(fmt, Monnam(mtmp), what);
| ^~~~~
mhitu.c: In function 'hitmsg':
mhitu.c:68:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
68 | pline(pfmt, Monst_name);
| ^~~~~
mkobj.c: In function 'insane_object':
mkobj.c:2848:20: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2848 | impossible(altfmt, mesg, fmt_ptr((genericptr_t) obj), where_name(obj),
| ^~~~~~
mkobj.c:2852:20: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2852 | objnm);
| ^~~~~
mon.c: In function 'mon_givit':
mon.c:1469:9: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
1469 | pline(msg, Monnam(mtmp));
| ^~~~~
mon.c: In function 'mondead':
mon.c:2485:33: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2485 | | SUPPRESS_INVISIBLE), FALSE));
| ^
muse.c: In function 'mon_reflects':
muse.c:2438:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2438 | pline(str, s_suffix(mon_nam(mon)), "shield");
| ^~~~~
muse.c:2445:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2445 | pline(str, s_suffix(mon_nam(mon)), "weapon");
| ^~~~~
muse.c:2450:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2450 | pline(str, s_suffix(mon_nam(mon)), "amulet");
| ^~~~~
muse.c:2458:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2458 | pline(str, s_suffix(mon_nam(mon)), "armor");
| ^~~~~
muse.c:2464:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2464 | pline(str, s_suffix(mon_nam(mon)), "scales");
| ^~~~~
muse.c: In function 'ureflects':
muse.c:2476:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2476 | pline(fmt, str, "shield");
| ^~~~~
muse.c:2483:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2483 | pline(fmt, str, "weapon");
| ^~~~~
muse.c:2487:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2487 | pline(fmt, str, "medallion");
| ^~~~~
muse.c:2493:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2493 | pline(fmt, str, uskin ? "luster" : "armor");
| ^~~~~
muse.c:2497:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2497 | pline(fmt, str, "scales");
| ^~~~~
polyself.c: In function 'polyman':
polyself.c:201:5: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
201 | urgent_pline(fmt, arg);
| ^~~~~~~~~~~~
potion.c: In function 'make_hallucinated':
potion.c:423:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
423 | pline(message, verb);
| ^~~~~
potion.c: In function 'peffect_gain_level':
potion.c:1033:17: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
1033 | You(riseup, ceiling(u.ux, u.uy));
| ^~~
potion.c:1044:21: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
1044 | You(riseup, ceiling(u.ux, u.uy));
| ^~~
priest.c: In function 'intemple':
priest.c:487:17: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
487 | You(msg1, msg2);
| ^~~
read.c: In function 'doread':
read.c:522:9: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
522 | pline(silly_thing_to, "read");
| ^~~~~
shk.c: In function 'shk_names_obj':
shk.c:2576:15: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2576 | pline(fmtbuf, obj_name, (obj->quan > 1L) ? "them" : "it", amt,
| ^~~~~~
shk.c:2579:9: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2579 | You(fmt, obj_name, amt, plur(amt), arg);
| ^~~
shk.c: In function 'shk_chat':
shk.c:4506:13: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
4506 | pline(Izchak_speaks[rn2(SIZE(Izchak_speaks))], shkname(shkp));
| ^~~~~
shk.c: In function 'check_unpaid_usage':
shk.c:4633:9: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
4633 | verbalize(fmt, arg1, arg2, tmp, currency(tmp));
| ^~~~~~~~~
sounds.c: In function 'dosounds':
sounds.c:66:21: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
66 | pline(throne_msg[2], uhis());
| ^~~~~
sounds.c:259:17: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
259 | You_hear(msg, halu_gname(EPRI(mtmp)->shralign));
| ^~~~~~~~
timeout.c: In function 'choke_dialogue':
timeout.c:269:26: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
269 | body_part(NECK));
| ^~~~~~~~~
timeout.c:274:17: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
274 | urgent_pline(str, hcolor(NH_BLUE));
| ^~~~~~~~~~~~
timeout.c: In function 'levitation_dialogue':
timeout.c:339:26: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
339 | danger ? surface(u.ux, u.uy) : "air");
| ^~~~~~
timeout.c: In function 'slime_dialogue':
timeout.c:379:34: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
379 | urgent_pline(buf, hcolor(NH_GREEN));
| ^~~
timeout.c:381:30: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
381 | urgent_pline(buf, an(Hallucination ? rndmonnam(NULL)
| ^~~
uhitm.c: In function 'hmon_hitmon':
uhitm.c:1398:9: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
1398 | pline(fmt, whom);
| ^~~~~
uhitm.c:1421:9: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
1421 | pline(fmt, whom);
| ^~~~~
uhitm.c: In function 'stumble_onto_mimic':
uhitm.c:5301:9: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
5301 | pline(fmt, what);
| ^~~~~
../win/tty/wintty.c: In function 'tty_clear_nhwindow':
../win/tty/wintty.c:1649:15: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
1649 | panic(winpanicstr, window);
| ^~~~~~~~~~~
../win/tty/wintty.c: In function 'tty_display_nhwindow':
../win/tty/wintty.c:2339:15: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2339 | panic(winpanicstr, window);
| ^~~~~~~~~~~
../win/tty/wintty.c: In function 'tty_dismiss_nhwindow':
../win/tty/wintty.c:2432:15: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2432 | panic(winpanicstr, window);
| ^~~~~~~~~~~
../win/tty/wintty.c: In function 'tty_destroy_nhwindow':
../win/tty/wintty.c:2477:15: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2477 | panic(winpanicstr, window);
| ^~~~~~~~~~~
../win/tty/wintty.c: In function 'tty_curs':
../win/tty/wintty.c:2503:15: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2503 | panic(winpanicstr, window);
| ^~~~~~~~~~~
../win/tty/wintty.c: In function 'tty_putsym':
../win/tty/wintty.c:2599:15: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2599 | panic(winpanicstr, window);
| ^~~~~~~~~~~
../win/tty/wintty.c: In function 'tty_add_menu':
../win/tty/wintty.c:2967:15: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
2967 | panic(winpanicstr, window);
| ^~~~~~~~~~~
../win/tty/wintty.c: In function 'tty_end_menu':
../win/tty/wintty.c:3032:15: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
3032 | panic(winpanicstr, window);
| ^~~~~~~~~~~
../win/tty/wintty.c: In function 'tty_select_menu':
../win/tty/wintty.c:3140:15: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
3140 | panic(winpanicstr, window);
| ^~~~~~~~~~~
move out-of-date hints files to the outdated folder.
rename the hints files, and hints/include files that are currently
named *.2020 to *.370 (next release number).
