SDL: Compatible with including as <SDL2/SDL.h>

From 45c1cc81771123a3a3a632e945dd4fd7a428c92b Mon Sep 17 00:00:00 2001
From: Xiaofeng Wang <[EMAIL REDACTED]>
Date: Fri, 29 Jul 2022 11:30:17 +0800
Subject: [PATCH] Compatible with including as <SDL2/SDL.h>

---
 sdl2.pc.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sdl2.pc.in b/sdl2.pc.in
index 1b3c0dbe8a2..ad1a9574fe2 100644
--- a/sdl2.pc.in
+++ b/sdl2.pc.in
@@ -11,4 +11,4 @@ Version: @SDL_VERSION@
 Requires:
 Conflicts:
 Libs: -L${libdir} @SDL_RLD_FLAGS@ @SDL_LIBS@ @PKGCONFIG_LIBS_PRIV@ @SDL_STATIC_LIBS@
-Cflags: -I${includedir}/SDL2 @SDL_CFLAGS@
+Cflags: -I${includedir} -I${includedir}/SDL2 @SDL_CFLAGS@