From db7e8bac9a6da48b22c3e183a464a9156db0a33d Mon Sep 17 00:00:00 2001
From: Greg Wickham <greg.wickham@kaust.edu.sa>
Date: Mon, 26 Dec 2016 11:34:55 +0300
Subject: [PATCH] > EVP_MD_CTX_create() and EVP_MD_CTX_destroy() were renamed
 to > EVP_MD_CTX_new() and EVP_MD_CTX_free() in OpenSSL 1.1.

This patch permits compilation on RHEL7 systems (that have
OpenSSL tagged as 1.0)
---
 cache.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/cache.c b/cache.c
index 0bdb4a81..78cbc861 100644
--- a/cache.c
+++ b/cache.c
@@ -45,12 +45,20 @@ static unsigned int sha_hash(const char *data, size_t size, unsigned char *out)
 	const EVP_MD *md = EVP_get_digestbyname("SHA1");
 
 	if (md != NULL) {
+#if OPENSSL_VERSION_NUMBER < 0x10100000
+		EVP_MD_CTX *mdctx = EVP_MD_CTX_create();
+#else
 		EVP_MD_CTX *mdctx = EVP_MD_CTX_new();
+#endif
 		EVP_MD_CTX_init(mdctx);
 		EVP_DigestInit_ex(mdctx, md, NULL);
 		EVP_DigestUpdate(mdctx, data, size);
 		EVP_DigestFinal_ex(mdctx, out, &md_len);
+#if OPENSSL_VERSION_NUMBER < 0x10100000
+		EVP_MD_CTX_destroy(mdctx);
+#else
 		EVP_MD_CTX_free(mdctx);
+#endif
 	}
 	return md_len;
 }