Vendor raptor source files (was embedded gitlink)

Tree vendored at upstream 0019c5dd; origin + license recorded in
raptor/VENDOR.txt. Windows SDL dev packages excluded via .gitignore.

raptor/include/SDL2-devel-2.28.2-mingw/SDL2-2.28.2/test/testlocale.c

@@ -0,0 +1,67 @@
+/*
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely.
+*/
+#include <stdio.h>
+#include "SDL.h"
+
+/* !!! FIXME: move this to the test framework */
+
+static void log_locales(void)
+{
+    SDL_Locale *locales = SDL_GetPreferredLocales();
+    if (locales == NULL) {
+        SDL_Log("Couldn't determine locales: %s", SDL_GetError());
+    } else {
+        SDL_Locale *l;
+        unsigned int total = 0;
+        SDL_Log("Locales, in order of preference:");
+        for (l = locales; l->language; l++) {
+            const char *c = l->country;
+            SDL_Log(" - %s%s%s", l->language, c ? "_" : "", c ? c : "");
+            total++;
+        }
+        SDL_Log("%u locales seen.", total);
+        SDL_free(locales);
+    }
+}
+
+int main(int argc, char **argv)
+{
+    /* Enable standard application logging */
+    SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
+
+    /* Print locales and languages */
+    if (SDL_Init(SDL_INIT_VIDEO) != -1) {
+        log_locales();
+
+        if ((argc == 2) && (SDL_strcmp(argv[1], "--listen") == 0)) {
+            SDL_bool keep_going = SDL_TRUE;
+            while (keep_going) {
+                SDL_Event e;
+                while (SDL_PollEvent(&e)) {
+                    if (e.type == SDL_QUIT) {
+                        keep_going = SDL_FALSE;
+                    } else if (e.type == SDL_LOCALECHANGED) {
+                        SDL_Log("Saw SDL_LOCALECHANGED event!");
+                        log_locales();
+                    }
+                }
+                SDL_Delay(10);
+            }
+        }
+
+        SDL_Quit();
+    }
+
+    return 0;
+}
+
+/* vi: set ts=4 sw=4 expandtab: */