# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1751689428 25200
# Node ID 0a6d644c47aae24b231852e27d59c4b3b75d37f3
# Parent  5ca4e0fd761ba3a53df3448ec83bbb676b68b42b
Avoid crash if using an older SDL2 DLL than the one we compiled with

diff -r 5ca4e0fd761b -r 0a6d644c47aa render_sdl.c
--- a/render_sdl.c	Fri Jul 04 19:35:50 2025 -0700
+++ b/render_sdl.c	Fri Jul 04 21:23:48 2025 -0700
@@ -2636,7 +2636,10 @@
 	if (!button_lookup) {
 		for (int i = SDL_CONTROLLER_BUTTON_A; i < SDL_CONTROLLER_BUTTON_MAX; i++)
 		{
-			button_lookup = tern_insert_int(button_lookup, SDL_GameControllerGetStringForButton(i), i);
+			const char *bname = SDL_GameControllerGetStringForButton(i);
+			if (bname) {
+				button_lookup = tern_insert_int(button_lookup, bname, i);
+			}
 		}
 		//alternative Playstation-style names
 		button_lookup = tern_insert_int(button_lookup, "cross", SDL_CONTROLLER_BUTTON_A);