TLS: Fix ECDH use under LibreSSL. Bug 1806

diff --git a/src/src/tls-openssl.c b/src/src/tls-openssl.c
index f45daa767386b1eb768d0b136150b835ed527dcb..9e008e149c5834512e08cc3b5188f7196fde64b2 100644 (file)
--- a/src/src/tls-openssl.c
+++ b/src/src/tls-openssl.c
@@ -62,7 +62,10 @@ functions from the OpenSSL library. */
     && (OPENSSL_VERSION_NUMBER & 0x0000ff000L) >= 0x000002000L
 #  define EXIM_HAVE_OPENSSL_CHECKHOST
 # endif
+#endif
 
+#if !defined(LIBRESSL_VERSION_NUMBER) \
+    || LIBRESSL_VERSION_NUMBER >= 0x20010000L
 # if !defined(OPENSSL_NO_ECDH)
 #  if OPENSSL_VERSION_NUMBER >= 0x0090800fL
 #   define EXIM_HAVE_ECDH