diff -up jack-1.9.5/linux/cycles.h.cycles jack-1.9.5/linux/cycles.h
--- jack-1.9.5/linux/cycles.h.cycles	2010-08-28 16:03:40.000000000 +0200
+++ jack-1.9.5/linux/cycles.h	2010-08-28 16:05:47.000000000 +0200
@@ -39,7 +39,7 @@
 
 #ifdef __linux__
 
-#ifdef __x86_64__
+#if defined(__x86_64__)
 
 typedef unsigned long cycles_t;
 extern cycles_t cacheflush_time;
@@ -51,9 +51,7 @@ static inline unsigned long get_cycles(v
     return (((unsigned long)hi)<<32) | ((unsigned long)lo);
 }
 
-#endif
-
-#ifdef __PPC__
+#elif defined(__PPC__)
 
 /* PowerPC */
 
@@ -82,9 +80,7 @@ static inline cycles_t get_cycles(void)
     return ret;
 }
 
-#endif
-
-#ifdef __i386__
+#elif defined(__i386__)
 
 typedef unsigned long long cycles_t;
 
@@ -101,8 +97,19 @@ static inline cycles_t get_cycles (void)
     return ret;
 }
 
-#endif
+#else
+
+/* fallback solution */
+typedef unsigned long cycles_t;
+
+static inline cycles_t get_cycles (void)
+{
+    return 0;
+}
+
 
 #endif
 
+#endif /* __linux__ */
+
 #endif /* __jack_cycles_h__ */