diff --git a/devel/avr-gcc/files/patch-gcc_tree-vect-loop.c b/devel/avr-gcc/files/patch-gcc_tree-vect-loop.c
new file mode 100644
index 000000000000..b3a35feb645d
--- /dev/null
+++ b/devel/avr-gcc/files/patch-gcc_tree-vect-loop.c
@@ -0,0 +1,11 @@
+--- gcc/tree-vect-loop.c.orig	2019-11-28 10:47:59 UTC
++++ gcc/tree-vect-loop.c
+@@ -55,6 +55,8 @@ along with GCC; see the file COPYING3.  If not see
+ #include "vec-perm-indices.h"
+ #include "tree-eh.h"
+ 
++#define vec_step vec_step_
++
+ /* Loop Vectorization Pass.
+ 
+    This pass tries to vectorize loops.