patch from Martin Decky <deckm1am@ss1000.ms.mff.cuni.cz> applied and unnecassery "memory" removed

git-svn-id: file:///var/local/repositories/mplayer/trunk/postproc@2535 b3059339-0415-0410-9bf9-f77b7e298cf2

swscale.c

@@ -1436,8 +1436,11 @@ else				s_xinc2= s_xinc;
 	g16Dither2= g16Dither;
 #endif
   }
-__asm __volatile(SFENCE:::"memory");
-__asm __volatile(EMMS:::"memory");
+
+#ifdef HAVE_MMX
+	__asm __volatile(SFENCE:::"memory");
+	__asm __volatile(EMMS);
+#endif
 }
 
 

swscale_template.c

@@ -1436,8 +1436,11 @@ else				s_xinc2= s_xinc;
 	g16Dither2= g16Dither;
 #endif
   }
-__asm __volatile(SFENCE:::"memory");
-__asm __volatile(EMMS:::"memory");
+
+#ifdef HAVE_MMX
+	__asm __volatile(SFENCE:::"memory");
+	__asm __volatile(EMMS);
+#endif
 }