https://github.com/mupen64plus/mupen64plus-core/pull/1093
https://github.com/mupen64plus/mupen64plus-core/commit/966a5df3165afede21204610c396dba1ed8a5bf3
https://github.com/mupen64plus/mupen64plus-core/commit/b007759b9ed9d1473c732b4f3abcd9257165c65c
https://github.com/Rosalie241/RMG/commit/4cd4f4c6ea37c82cdda6b0a57e79af1b71df17fe

From: orbea <orbea@riseup.net>
Date: Mon, 21 Oct 2024 09:10:57 -0700
Subject: [PATCH 3/3] build: drop SDL1 support

SDL1 is unmaintained upstream and using it only leads to a degraded
experience. Especially when it recives far less testing.

build: use pkg-config for SDL2

SDL2 hasn't required suing sdl2-config in a long time and using
pkg-config can have better results for distros.
---
 projects/unix/Makefile | 28 ++++++++++------------------
 1 file changed, 10 insertions(+), 18 deletions(-)

--- a/Source/3rdParty/mupen64plus-core/projects/unix/Makefile
+++ b/Source/3rdParty/mupen64plus-core/projects/unix/Makefile
@@ -351,26 +351,18 @@ endif
 
 # test for presence of SDL
 ifeq ($(origin SDL_CFLAGS) $(origin SDL_LDLIBS), undefined undefined)
-  SDL_CONFIG = $(CROSS_COMPILE)sdl2-config
-  ifeq ($(shell which $(SDL_CONFIG) 2>/dev/null),)
-    SDL_CONFIG = $(CROSS_COMPILE)sdl-config
-    ifeq ($(shell which $(SDL_CONFIG) 2>/dev/null),)
-      $(error No SDL development libraries found!)
-    else
-      ifeq ($(NETPLAY), 1)
-        SDL_LDLIBS += -lSDL_net
-      endif
-      # SDL1 doesn't support vulkan
-      VULKAN = 0
-      $(warning Using SDL 1.2 libraries)
-    endif
-  else
-    ifeq ($(NETPLAY), 1)
-      SDL_LDLIBS += -lSDL2_net
+  ifeq ($(shell $(PKG_CONFIG) --modversion sdl2 2>/dev/null),)
+    $(error No SDL2 development libraries found!)
+  endif
+  ifeq ($(NETPLAY), 1)
+    ifeq ($(shell $(PKG_CONFIG) --modversion SDL2_net 2>/dev/null),)
+      $(error No SDL2_net development libraries found!)
     endif
+    SDL_CFLAGS += $(shell $(PKG_CONFIG) --cflags SDL2_net)
+    SDL_LDLIBS += $(shell $(PKG_CONFIG) --libs SDL2_net)
   endif
-  SDL_CFLAGS  += $(shell $(SDL_CONFIG) --cflags)
-  SDL_LDLIBS += $(shell $(SDL_CONFIG) --libs)
+  SDL_CFLAGS += $(shell $(PKG_CONFIG) --cflags sdl2)
+  SDL_LDLIBS += $(shell $(PKG_CONFIG) --libs sdl2)
 endif
 CFLAGS += $(SDL_CFLAGS)
 LDLIBS += $(SDL_LDLIBS)