diff -ru gnu-efi-3.0.4-orig/lib/aarch64/initplat.c gnu-efi-3.0.4/lib/aarch64/initplat.c
--- gnu-efi-3.0.4-orig/lib/aarch64/initplat.c	2016-03-17 09:53:14.000000000 -0400
+++ gnu-efi-3.0.4/lib/aarch64/initplat.c	2016-12-03 17:53:57.166575974 -0500
@@ -41,7 +41,8 @@
 
 void *memcpy(void *dest, const void *src, __SIZE_TYPE__ n)
 {
-    unsigned char *p = dest, *q = src;
+    unsigned char *p = dest;
+    const unsigned char *q = src;
 
     while (n--)
         *p++ = *q++;