Search for SDL.h in addition to SDL/SDL.h

Alc/sdl.c

@@ -30,7 +30,11 @@
 #include <dlfcn.h>
 #endif
 
+#ifdef HAVE_SDL_SDL_H
 #include <SDL/SDL.h>
+#elif defined(HAVE_SDL_H)
+#include <SDL.h>
+#endif
 
 static void *sdl_handle;
 #define MAKE_FUNC(x) static typeof(x) * p##x

CMakeLists.txt

@@ -323,8 +323,11 @@ ENDIF()
 
 # Check SDL backend
 IF(SDL)
-    CHECK_INCLUDE_FILE(SDL/SDL.h HAVE_SDL_SDL_H)
-    IF(HAVE_SDL_SDL_H)
+    CHECK_INCLUDE_FILE(SDL.h HAVE_SDL_H)
+    IF(NOT HAVE_SDL_H)
+        CHECK_INCLUDE_FILE(SDL/SDL.h HAVE_SDL_SDL_H)
+    ENDIF()
+    IF(HAVE_SDL_H OR HAVE_SDL_SDL_H)
         CHECK_LIBRARY_EXISTS(SDL SDL_Init "" HAVE_LIBSDL)
         IF(HAVE_DLFCN_H OR HAVE_LIBSDL)
             SET(HAVE_SDL 1)

config.h.in

@@ -37,6 +37,12 @@
 /* Define if we have stdint.h */
 #cmakedefine HAVE_STDINT_H
 
+/* Define if we have SDL/SDL.h */
+#cmakedefine HAVE_SDL_SDL_H
+
+/* Define if we have SDL.h */
+#cmakedefine HAVE_SDL_H
+
 /* Define if we have the __int64 type */
 #cmakedefine HAVE___INT64