--- third_party/nasm/config/config-linux.h.orig	2021-01-07 00:39:33 UTC
+++ third_party/nasm/config/config-linux.h
@@ -336,7 +336,7 @@
 #define HAVE_MEMORY_H 1
 
 /* Define to 1 if you have the `mempcpy' function. */
-#define HAVE_MEMPCPY 1
+/* #undef HAVE_MEMPCPY */
 
 /* Define to 1 if you have a working `mmap' system call. */
 #define HAVE_MMAP 1