Index: libmikmod-3.2.0/include/mikmod.h.in
===================================================================
--- libmikmod-3.2.0.orig/include/mikmod.h.in
+++ libmikmod-3.2.0/include/mikmod.h.in
@@ -85,7 +85,7 @@ typedef char CHAR;
 
 @DOES_NOT_HAVE_SIGNED@
 
-#if defined(__arch64__) || defined(__alpha) || defined(__x86_64) || defined(__powerpc64__)
+#if defined(__arch64__) || defined(__alpha) || defined(__x86_64) || defined(__powerpc64__) || defined(_LP64)
 /* 64 bit architectures */
 
 typedef signed char     SBYTE;      /* 1 byte, signed */