--- lib/intprops.h	2016-08-05 01:38:16.000000000 +0200
+++ lib/intprops.h	2017-05-08 12:19:47.703724356 +0200
@@ -223,7 +223,7 @@
    : (max) >> (b) < (a))
 
 /* True if __builtin_add_overflow (A, B, P) works when P is null.  */
-#define _GL_HAS_BUILTIN_OVERFLOW_WITH_NULL (7 <= __GNUC__)
+#define _GL_HAS_BUILTIN_OVERFLOW_WITH_NULL (7 < __GNUC__)
 
 /* The _GL*_OVERFLOW macros have the same restrictions as the
    *_RANGE_OVERFLOW macros, except that they do not assume that operands