diff --git a/srcpkgs/diffutils/patches/gcc7-builtin_add_overflow.patch b/srcpkgs/diffutils/patches/gcc7-builtin_add_overflow.patch
new file mode 100644
index 0000000000..dbb7204001
--- /dev/null
+++ b/srcpkgs/diffutils/patches/gcc7-builtin_add_overflow.patch
@@ -0,0 +1,11 @@
+--- 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