diff --git a/projects/unix/Makefile b/projects/unix/Makefile
old mode 100755
new mode 100644
index e03a765..30ffbb6
--- a/projects/unix/Makefile
+++ b/projects/unix/Makefile
@@ -149,23 +149,6 @@ ifeq ($(OS), OSX)
   endif
 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
-      $(warning Using SDL 1.2 libraries)
-    endif
-  endif
-  SDL_CFLAGS += $(shell $(SDL_CONFIG) --cflags)
-  SDL_LDLIBS += $(shell $(SDL_CONFIG) --libs)
-endif
-CFLAGS += $(SDL_CFLAGS)
-LDLIBS += $(SDL_LDLIBS)
-
 # test for essential build dependencies
 ifeq ($(origin PKG_CONFIG), undefined)
   PKG_CONFIG = $(CROSS_COMPILE)pkg-config
@@ -174,6 +157,17 @@ ifeq ($(origin PKG_CONFIG), undefined)
   endif
 endif
 
+# test for presence of SDL
+ifeq ($(origin SDL_CFLAGS) $(origin SDL_LDLIBS), undefined undefined)
+  ifeq ($(shell $(PKG_CONFIG) --modversion sdl2 2>/dev/null),)
+    $(error No SDL2 development libraries found!)
+  endif
+  SDL_CFLAGS += $(shell $(PKG_CONFIG) --cflags sdl2)
+  SDL_LDLIBS += $(shell $(PKG_CONFIG) --libs sdl2)
+endif
+CFLAGS += $(SDL_CFLAGS)
+LDLIBS += $(SDL_LDLIBS)
+
 # test for presence of speexdsp
 ifneq ($(NO_SPEEX), 1)
   ifeq ($(origin SPEEX_CFLAGS) $(origin SPEEX_LDLIBS), undefined undefined)
diff --git a/src/main.c b/src/main.c
index a0895fa..d4dbe4d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -76,9 +76,7 @@
    They tend to rely on a default frequency, apparently, never the same one ;)*/
 #define DEFAULT_FREQUENCY 33600
 
-#if SDL_VERSION_ATLEAST(2,0,0)
 #define SDL_MixAudio(A, B, C, D) SDL_MixAudioFormat(A, B, AUDIO_S16SYS, C, D)
-#endif
 
 /* local variables */
 static void (*l_DebugCallback)(void *, int, const char *) = NULL;
diff --git a/src/sdl_backend.c b/src/sdl_backend.c
index 71aecda..572aae3 100644
--- a/src/sdl_backend.c
+++ b/src/sdl_backend.c
@@ -37,22 +37,6 @@
 #define N64_SAMPLE_BYTES 4
 #define SDL_SAMPLE_BYTES 4
 
-/* For SDL < 1.3 */
-#if !SDL_VERSION_ATLEAST(1,3,0)
-#define SDL_AUDIO_MASK_BITSIZE       (0xFF)
-#define SDL_AUDIO_MASK_DATATYPE      (1<<8)
-#define SDL_AUDIO_MASK_ENDIAN        (1<<12)
-#define SDL_AUDIO_MASK_SIGNED        (1<<15)
-#define SDL_AUDIO_BITSIZE(x)         (x & SDL_AUDIO_MASK_BITSIZE)
-#define SDL_AUDIO_ISFLOAT(x)         (x & SDL_AUDIO_MASK_DATATYPE)
-#define SDL_AUDIO_ISBIGENDIAN(x)     (x & SDL_AUDIO_MASK_ENDIAN)
-#define SDL_AUDIO_ISSIGNED(x)        (x & SDL_AUDIO_MASK_SIGNED)
-#define SDL_AUDIO_ISINT(x)           (!SDL_AUDIO_ISFLOAT(x))
-#define SDL_AUDIO_ISLITTLEENDIAN(x)  (!SDL_AUDIO_ISBIGENDIAN(x))
-#define SDL_AUDIO_ISUNSIGNED(x)      (!SDL_AUDIO_ISSIGNED(x))
-#endif
-
-#if SDL_VERSION_ATLEAST(2,0,0)
 #define SDL_LockAudio() SDL_LockAudioDevice(sdl_backend->device)
 #define SDL_UnlockAudio() SDL_UnlockAudioDevice(sdl_backend->device)
 #define SDL_PauseAudio(A) SDL_PauseAudioDevice(sdl_backend->device, A)
@@ -61,10 +45,6 @@
 struct sdl_backend
 {
     SDL_AudioDeviceID device;
-#else
-struct sdl_backend
-{
-#endif
     m64p_handle config;
 
     struct circular_buffer primary_buffer;