Rewrite and redesign codegen and feature system

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.

1 files changed, 5 insertions, 7 deletions

diff --git a/src/build/mkentprops.c b/src/build/mkentprops.c
index cda1c02..3df21ed 100644
--- a/src/build/mkentprops.c
+++ b/src/build/mkentprops.c
@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Michael Smith <mikesmiffy128@gmail.com>
+ * Copyright © 2025 Michael Smith <mikesmiffy128@gmail.com>
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -30,7 +30,7 @@
 #endif
 
 static noreturn die(int status, const char *s) {
-	fprintf(stderr, "mkentprops: %s\n", s);
+	fprintf(stderr, "mkentprops: fatal: %s\n", s);
 	exit(status);
 }
 static noreturn dieparse(const os_char *file, int line, const char *s) {
@@ -194,7 +194,7 @@ static inline void handleentry(char *k, char *v, int vlen,
 	}
 }
 
-static void parse(const os_char *file, int len) {
+static inline void parse(const os_char *file, int len) {
 	char *s = sbase; // for convenience
 	if (s[len - 1] != '\n') dieparse(file, 0, "invalid text file (missing EOL)");
 	enum { BOL = 0, KEY = 4, KWS = 8, VAL = 12, COM = 16, ERR = -1 };
@@ -279,14 +279,12 @@ Fi("		%s = off;", sbase + art_leaves[idx].varstr);
 _i("		if (mem_loads32(mem_offset(sp, off_SP_type)) == DPT_DataTable) {")
 _i("			int baseoff = off;")
 _i("			const struct SendTable *st = mem_loadptr(mem_offset(sp, off_SP_subtable));")
-_i("			// BEGIN SUBTABLE")
 Fi("			for (int i = 0, need = %d; i < st->nprops && need; ++i) {",
 art_leaves[idx].nsubs + (art_leaves[idx].varstr != -1))
 _i("				const struct SendProp *sp = mem_offset(st->props, sz_SendProp * i);")
 _i("				const char *p = mem_loadptr(mem_offset(sp, off_SP_varname));")
 				dosendtables(out, art_leaves[idx].subtree, indent + 4);
 _i("			}")
-_i("			// END SUBTABLE")
 _i("		}")
 			}
 Fi("		--need;")
@@ -338,7 +336,7 @@ _i("	} break;")
 _i("}")
 }
 
-static void dodecls(FILE *out) {
+static inline void dodecls(FILE *out) {
 	for (int i = 0; i < ndecls; ++i) {
 		const char *s = sbase + decls[i];
 F( "extern int %s;", s);
@@ -346,7 +344,7 @@ F( "#define has_%s (!!%s)", s, s); // offsets will NEVER be 0, due to vtable!
 	}
 }
 
-static void doinit(FILE *out) {
+static inline void doinit(FILE *out) {
 	for (int i = 0; i < ndecls; ++i) {
 		const char *s = sbase + decls[i];
 F( "int %s = 0;", s);