--- third_party/libeio/ecb.h.orig	2014-02-19 14:08:58 UTC
+++ third_party/libeio/ecb.h
@@ -468,12 +468,12 @@ ecb_inline uint64_t ecb_rotr64 (uint64_t
   }
 #endif
 
-#if ECB_GCC_VERSION(4,5)
+#if ECB_GCC_VERSION(4,5) || defined __clang__
   #define ecb_unreachable() __builtin_unreachable ()
 #else
   /* this seems to work fine, but gcc always emits a warning for it :/ */
-  ecb_inline void ecb_unreachable (void) ecb_noreturn;
-  ecb_inline void ecb_unreachable (void) { }
+  ecb_inline ecb_noreturn void ecb_unreachable (void);
+  ecb_inline ecb_noreturn void ecb_unreachable (void) { }
 #endif
 
 /* try to tell the compiler that some condition is definitely true */