Use proper m68k defines from gcc

include/SDL_endian.h

@@ -91,7 +91,7 @@ static __inline__ Uint16 SDL_Swap16(Uint16 x)
 	__asm__("rlwimi %0,%2,8,16,23" : "=&r" (result) : "0" (x >> 8), "r" (x));
 	return result;
 }
-#elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__)) && !defined(__mcoldfire__)
+#elif defined(__GNUC__) && (defined(__m68k__) && !defined(__mcoldfire__))
 static __inline__ Uint16 SDL_Swap16(Uint16 x)
 {
 	__asm__("rorw #8,%0" : "=d" (x) :  "0" (x) : "cc");
@@ -126,7 +126,7 @@ static __inline__ Uint32 SDL_Swap32(Uint32 x)
 	__asm__("rlwimi %0,%2,24,0,7"   : "=&r" (result) : "0" (result),    "r" (x));
 	return result;
 }
-#elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__)) && !defined(__mcoldfire__)
+#elif defined(__GNUC__) && (defined(__m68k__) && !defined(__mcoldfire__))
 static __inline__ Uint32 SDL_Swap32(Uint32 x)
 {
 	__asm__("rorw #8,%0\n\tswap %0\n\trorw #8,%0" : "=d" (x) :  "0" (x) : "cc");

src/audio/SDL_mixer.c

@@ -111,7 +111,7 @@ void SDL_MixAudio (Uint8 *dst, const Uint8 *src, Uint32 len, int volume)
 	switch (format) {
 
 		case AUDIO_U8: {
-#if defined(__GNUC__) && defined(__M68000__) && !defined(__mcoldfire__) && defined(SDL_ASSEMBLY_ROUTINES)
+#if defined(__GNUC__) && (defined(__m68k__) && !defined(__mcoldfire__)) && defined(SDL_ASSEMBLY_ROUTINES)
 			SDL_MixAudio_m68k_U8((char*)dst,(char*)src,(unsigned long)len,(long)volume,(char *)mix8);
 #else
 			Uint8 src_sample;
@@ -144,7 +144,7 @@ void SDL_MixAudio (Uint8 *dst, const Uint8 *src, Uint32 len, int volume)
 #endif
 #endif
 
-#if defined(__GNUC__) && defined(__M68000__) && !defined(__mcoldfire__) && defined(SDL_ASSEMBLY_ROUTINES)
+#if defined(__GNUC__) && (defined(__m68k__) && !defined(__mcoldfire__)) && defined(SDL_ASSEMBLY_ROUTINES)
 			SDL_MixAudio_m68k_S8((char*)dst,(char*)src,(unsigned long)len,(long)volume);
 #else
 			{
@@ -193,7 +193,7 @@ void SDL_MixAudio (Uint8 *dst, const Uint8 *src, Uint32 len, int volume)
 #endif
 #endif
 
-#if defined(__GNUC__) && defined(__M68000__) && !defined(__mcoldfire__) && defined(SDL_ASSEMBLY_ROUTINES)
+#if defined(__GNUC__) && (defined(__m68k__) && !defined(__mcoldfire__)) && defined(SDL_ASSEMBLY_ROUTINES)
 			SDL_MixAudio_m68k_S16LSB((short*)dst,(short*)src,(unsigned long)len,(long)volume);
 #else
 			{
@@ -226,7 +226,7 @@ void SDL_MixAudio (Uint8 *dst, const Uint8 *src, Uint32 len, int volume)
 		break;
 
 		case AUDIO_S16MSB: {
-#if defined(__GNUC__) && defined(__M68000__) && !defined(__mcoldfire__) && defined(SDL_ASSEMBLY_ROUTINES)
+#if defined(__GNUC__) && (defined(__m68k__) && !defined(__mcoldfire__)) && defined(SDL_ASSEMBLY_ROUTINES)
 			SDL_MixAudio_m68k_S16MSB((short*)dst,(short*)src,(unsigned long)len,(long)volume);
 #else
 			Sint16 src1, src2;

src/audio/SDL_mixer_m68k.c

@@ -27,7 +27,7 @@
 	Patrice Mandin
 */
 
-#if defined(__M68000__) && !defined(__mcoldfire__) && defined(__GNUC__)
+#if (defined(__m68k__) && !defined(__mcoldfire__)) && defined(__GNUC__)
 void SDL_MixAudio_m68k_U8(char* dst, char* src, long len, long volume, char* mix8)
 {
     __asm__ __volatile__ (

src/audio/SDL_mixer_m68k.h

@@ -27,7 +27,7 @@
 	Patrice Mandin
 */
 
-#if defined(__M68000__) && defined(__GNUC__)
+#if (defined(__m68k__) && !defined(__mcoldfire__)) && defined(__GNUC__)
 void SDL_MixAudio_m68k_U8(char* dst,char* src, long len, long volume, char* mix8);
 void SDL_MixAudio_m68k_S8(char* dst,char* src, long len, long volume);
 

src/video/ataricommon/SDL_ataric2p.S

@@ -305,7 +305,7 @@ _SDL_Atari_C2pConvert4:
 	movel	c2p_dest,a1
 	lea	_SDL_Atari_table_c2p,a2
 	movel	#0x00070001,d3
-#if defined(__M68020__)
+#if defined(__mc68020__)
 	moveq	#0,d0
 #endif
 
@@ -326,7 +326,7 @@ c2p4_bclx:
 	moveq	#0,d1
 	moveq	#7,d5
 c2p4_bcl07:
-#if defined(__M68020__)
+#if defined(__mc68020__)
 	moveb	a0@+,d0
 	lea		a2@(0,d0:w:4),a3
 #else
@@ -348,7 +348,7 @@ c2p4_bcl07:
 	moveq	#0,d1
 	moveq	#7,d5
 c2p4_bcl815:
-#if defined(__M68020__)
+#if defined(__mc68020__)
 	moveb	a0@+,d0
 	lea		a2@(0,d0:w:4),a3
 #else