sdl2-compat: init: Print the required SDL3 version even if a function is unavailable

SDL Commits
1 
From ec6571c9460f6f636117ed181a03e46d93af6f59 Mon Sep 17 00:00:00 2001
From: Cameron Gutman <[EMAIL REDACTED]>
Date: Sat, 15 Feb 2025 15:04:09 -0600
Subject: [PATCH] init: Print the required SDL3 version even if a function is
 unavailable

As a side-effect, this also strictly enforces the rule of no SDL3 usage during init.

Fixes #357
---
 src/sdl2_compat.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/sdl2_compat.c b/src/sdl2_compat.c
index bb921d9..7d049f6 100644
--- a/src/sdl2_compat.c
+++ b/src/sdl2_compat.c
@@ -834,8 +834,8 @@ LoadSDL3(void)
         if (!okay) {
             SDL2COMPAT_stpcpy(loaderror, "Failed loading SDL3 library.");
         } else {
-            #define SDL3_SYM(rc,fn,params,args,ret) SDL3_##fn = (SDL3_##fn##_t) LoadSDL3Symbol("SDL_" #fn, &okay);
-            #include "sdl3_syms.h"
+            /* Load SDL_GetVersion() alone first to allow us to check and log the required SDL3 version */
+            SDL3_GetVersion = (SDL3_GetVersion_t) LoadSDL3Symbol("SDL_GetVersion", &okay);
             if (okay) {
                 char sdl3verstr[16];
                 char sdl3reqverstr[16];
@@ -891,6 +891,8 @@ LoadSDL3(void)
                     SDL2Compat_ApplyQuirks(force_x11);  /* Apply and maybe print a list of any enabled quirks. */
                 }
             }
+            #define SDL3_SYM(rc,fn,params,args,ret) SDL3_##fn = (SDL3_##fn##_t) LoadSDL3Symbol("SDL_" #fn, &okay);
+            #include "sdl3_syms.h"
             if (!okay) {
                 UnloadSDL3();
             }