diff -Naur fluidsynth-1.0.6.orig/src/fluidsynth_priv.h fluidsynth-1.0.6/src/fluidsynth_priv.h
--- fluidsynth-1.0.6.orig/src/fluidsynth_priv.h	2005-06-12 06:40:01.000000000 +0900
+++ fluidsynth-1.0.6/src/fluidsynth_priv.h	2005-10-06 00:22:28.000000000 +0900
@@ -285,7 +285,12 @@
  * As soon as proper alignment is supported by the compiler, this
  * can be removed.
  */
+#ifdef ENABLE_SSE
+/* FIXME - This is broken on AMD 64 - only used if SSE enabled */
 #define FLUID_ALIGN16BYTE(ptr)(((int)(ptr)+15) & (~0xFL))
+#else
+#define FLUID_ALIGN16BYTE(ptr) ptr
+#endif
 
 #if WITH_FTS
 #define FLUID_PRINTF                 post