From 014cc4b27a7f8ed0cf23a3c9d1fdbf44e41b7993 Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Fri, 2 Mar 2018 16:50:11 +0100
Subject: [PATCH] mem_sec.c: portability fixup.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/5493)
---
 crypto/mem_sec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/crypto/mem_sec.c b/crypto/mem_sec.c
index 77bf165fbc..ab4d137f63 100644
--- a/crypto/mem_sec.c
+++ b/crypto/mem_sec.c
@@ -45,6 +45,9 @@
 #ifndef PAGE_SIZE
 # define PAGE_SIZE    4096
 #endif
+#if !defined(MAP_ANON) && defined(MAP_ANONYMOUS)
+# define MAP_ANON MAP_ANONYMOUS
+#endif
 
 #ifdef IMPLEMENTED
 static size_t secure_mem_used;
-- 
2.25.1