diff --git a/data/c.m4 b/data/c.m4
index 2df76e77..04df3ffc 100644
--- a/data/c.m4
+++ b/data/c.m4
@@ -227,12 +227,16 @@ m4_define([b4_attribute_define],
 # define YY_ATTRIBUTE_UNUSED YY_ATTRIBUTE ((__unused__))
 #endif
 
-]m4_bmatch([$1], [\bnoreturn\b], [[#if !defined _Noreturn \
-     && (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112)
-# if defined _MSC_VER && 1200 <= _MSC_VER
+]m4_bmatch([$1], [\bnoreturn\b], [[/* The _Noreturn keyword of C11.  */
+#if ! (defined _Noreturn \
+       || (defined __STDC_VERSION__ && 201112 <= __STDC_VERSION__))
+# if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \
+      || 0x5110 <= __SUNPRO_C)
+#  define _Noreturn __attribute__ ((__noreturn__))
+# elif defined _MSC_VER && 1200 <= _MSC_VER
 #  define _Noreturn __declspec (noreturn)
 # else
-#  define _Noreturn YY_ATTRIBUTE ((__noreturn__))
+#  define _Noreturn
 # endif
 #endif