Index: libFDK/include/FDK_archdef.h
--- libFDK/include/FDK_archdef.h.orig
+++ libFDK/include/FDK_archdef.h
@@ -229,7 +229,7 @@ amm-info@iis.fraunhofer.de
 #define LDCOEFF_16BIT
 #define WINDOWTABLE_16BIT
 
-#elif defined(__powerpc__)
+#elif defined(__powerpc__) || defined(__sparc64__) || defined(__alpha__)
 #define ARCH_PREFER_MULT_32x32
 
 #elif defined(__s390x__)
