From 67d35396cbf3ba14a5ec3abc159edb9428b469cd Mon Sep 17 00:00:00 2001
From: Stefan Strogin <stefan.strogin@gmail.com>
Date: Wed, 9 Jan 2019 13:19:53 +0200
Subject: [PATCH] Fix build with LibreSSL

When using LibreSSL build fails with:

../src/crypto/tls_openssl.o: in function `tls_connection_client_cert':
../src/crypto/tls_openssl.c:2817: undefined reference to `SSL_use_certificate_chain_file'
collect2: error: ld returned 1 exit status
make: *** [Makefile:1901: wpa_supplicant] Error 1

There is no such function in LibreSSL.

Signed-off-by: Stefan Strogin <stefan.strogin@gmail.com>
---
 src/crypto/tls_openssl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/crypto/tls_openssl.c b/src/crypto/tls_openssl.c
index cb70e2c47..705fa29a3 100644
--- a/src/crypto/tls_openssl.c
+++ b/src/crypto/tls_openssl.c
@@ -2804,7 +2804,7 @@ static int tls_connection_client_cert(struct tls_connection *conn,
 		return 0;
 	}
 
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
 	if (SSL_use_certificate_chain_file(conn->ssl, client_cert) == 1) {
 		ERR_clear_error();
 		wpa_printf(MSG_DEBUG, "OpenSSL: SSL_use_certificate_chain_file"