From a56b51a0ba7b0d6fdff7fd0127a118185b146f4f Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Wed, 4 Sep 2019 14:14:03 +0200
Subject: [PATCH] Disable OpenSSL lock callback on OpenSSL >= 1.1.1

---
 src/libmain/shared.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/libmain/shared.cc b/src/libmain/shared.cc
index 0afddfb7..d3dbfbc4 100644
--- a/src/libmain/shared.cc
+++ b/src/libmain/shared.cc
@@ -80,6 +80,7 @@ string getArg(const string & opt,
 }
 
 
+#if OPENSSL_VERSION_NUMBER < 0x10101000L
 /* OpenSSL is not thread-safe by default - it will randomly crash
    unless the user supplies a mutex locking function. So let's do
    that. */
@@ -92,6 +93,7 @@ static void opensslLockCallback(int mode, int type, const char * file, int line)
     else
         opensslLocks[type].unlock();
 }
+#endif
 
 
 static void sigHandler(int signo) { }
@@ -105,9 +107,11 @@ void initNix()
     std::cerr.rdbuf()->pubsetbuf(buf, sizeof(buf));
 #endif
 
+#if OPENSSL_VERSION_NUMBER < 0x10101000L
     /* Initialise OpenSSL locking. */
     opensslLocks = std::vector<std::mutex>(CRYPTO_num_locks());
     CRYPTO_set_locking_callback(opensslLockCallback);
+#endif
 
     loadConfFile();