From 7ab9b6abecb0f3ac69b42e085ba6a3b3e8c26844 Mon Sep 17 00:00:00 2001
From: Mark Pizzolato <mark@infocomm.com>
Date: Sat, 22 Oct 2016 01:46:31 -0700
Subject: [PATCH] ETHER: Support building with MinGW environment

---
 sim_ether.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sim_ether.c b/sim_ether.c
index a0f941f3..aa7a21b7 100644
--- a/sim_ether.c
+++ b/sim_ether.c
@@ -1628,6 +1628,9 @@ static int _eth_get_system_id (char *buf, size_t buf_size)
   HKEY reghnd;
 
   memset (buf, 0, buf_size);
+#ifndef KEY_WOW64_64KEY
+#define KEY_WOW64_64KEY         (0x0100)
+#endif
   if ((status = RegOpenKeyExA (HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Cryptography", 0, KEY_QUERY_VALUE|KEY_WOW64_64KEY, &reghnd)) != ERROR_SUCCESS)
     return -1;
   reglen = buf_size;