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Turns out, there's no need for the trailing underscores. Plus, glibc
does some stupid stuff with __attribute__ for non-GCC compilers. Not
that that matters here, but it seems like a good practice just to use
the forms that never have such problems. And it's shorter too.
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This isn't useful to us at all, but might be useful to someone else.
I always try to write code for multiple compilers for this reason, even
if SST ultimately still requires Clang.
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Also switch to somewhat proper C23 flags while we're at it.
This is a huge change. It took me forever, in between being really busy.
Sorry about that. But the good news is I'm now free to start integrating
the various patches that have accumulated since last release. Well, at
least in between still being really busy. Gotta manage expectations.
The main benefit of introducing GAMESPECIFIC() is that features
that don't apply to a particular game no longer show up *at all*, and
less time is wasted on init. It also enables a cool optimisation wherein
unnecessary REQUIRE_GAMEDATA() checks can elided at compile time
whenever the gamedata is known up-front to always exist in supported
games.
The DEF_FEAT_CVAR macro family meanwhile makes it easier to manage the
lifecycle of cvars/ccmds, with less manual registering, unhiding and
such.
Originally I was going to try and just hack these features into the
existing codegen abomination, but it just got too terrible. This rewrite
should make it easier to continue tweaking codegen behaviour in future.
It also has slightly better error messages.
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My new programming style is branch hints. All non-confusing branches
must be hinted when I can be bothered. It's faster, sometimes, maybe.
Also, start trying to use more signed sizes in at least some of the
places where it makes sense. Unsigned sizes are surprisingly
error-prone!
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Michael Smith
