diff --git a/src/common/attrib.h b/src/common/attrib.h
index 07e08b2df..a7935d919 100644
--- a/src/common/attrib.h
+++ b/src/common/attrib.h
@@ -44,14 +44,20 @@
 
 
 
-#if defined(__GNUC__)
-#  define attribute(a)  __attribute__(a)
+#ifdef __clang__
+#  define attribute(a)      __attribute__(a)
+#  define ATTR_UNUSED(x)
+#  define ATTR_NORETURN     __attribute__((analyzer_noreturn))
+#elif defined(__GNUC__)
+#  define attribute(a)      __attribute__(a)
+#  define ATTR_UNUSED(x)    __attribute__((__unused__)) x
+#  define ATTR_NORETURN     __attribute__((noreturn))
 #else
 #  define attribute(a)
+#  define ATTR_UNUSED(x)
+#  define ATTR_NORETURN
 #endif
 
-
-
 /* End of attrib.h */
 
 #endif