Index: generic/nsfInt.h
===================================================================
diff -u -rc790d82b4b9e44e1d8e2a303e1d4931a91f049d8 -r69ce13b6fb009cc1faaca2dcce0c956a78d20186
--- generic/nsfInt.h	(.../nsfInt.h)	(revision c790d82b4b9e44e1d8e2a303e1d4931a91f049d8)
+++ generic/nsfInt.h	(.../nsfInt.h)	(revision 69ce13b6fb009cc1faaca2dcce0c956a78d20186)
@@ -94,12 +94,6 @@
 # define returns_nonnull
 #endif
 
-#if __GNUC_PREREQ(4, 9)
-# define returns_nonnull __attribute__((returns_nonnull))
-#else
-# define returns_nonnull
-#endif
-
 /*
  * Tries to use gcc __attribute__ unused and mangles the name, so the
  * attribute could not be used, if declared as unused.