--- qtbase/src/network/ssl/qsslellipticcurve_openssl.cpp	2017-01-18 15:20:58.000000000 +0100
+++ qtbase/src/network/ssl/qsslellipticcurve_openssl.cpp	2017-02-21 16:25:56.477986158 +0100
@@ -83,7 +83,7 @@
     const QByteArray curveNameLatin1 = name.toLatin1();
     int nid = q_OBJ_sn2nid(curveNameLatin1.data());
 
-#if OPENSSL_VERSION_NUMBER >= 0x10002000L
+#if (OPENSSL_VERSION_NUMBER >= 0x10002000L) && !defined(LIBRESSL_VERSION_NUMBER)
     if (nid == 0 && QSslSocket::sslLibraryVersionNumber() >= 0x10002000L)
         nid = q_EC_curve_nist2nid(curveNameLatin1.data());
 #endif // OPENSSL_VERSION_NUMBER >= 0x10002000L
--- qtbase/src/network/ssl/qsslsocket_openssl_symbols.cpp	2017-01-18 15:20:58.000000000 +0100
+++ qtbase/src/network/ssl/qsslsocket_openssl_symbols.cpp	2017-02-21 19:14:32.805677245 +0100
@@ -791,7 +791,7 @@
     RESOLVEFUNC(EC_GROUP_get_degree)
 #endif
     RESOLVEFUNC(BN_num_bits)
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+#if (OPENSSL_VERSION_NUMBER >= 0x10100000L) && !defined(LIBRESSL_VERSION_NUMBER)
     RESOLVEFUNC(BN_is_word)
 #endif
     RESOLVEFUNC(BN_mod_word)
--- qtbase/src/network/ssl/qsslsocket_openssl_symbols_p.h	2017-01-18 15:20:58.000000000 +0100
+++ qtbase/src/network/ssl/qsslsocket_openssl_symbols_p.h	2017-02-21 19:15:38.083714302 +0100
@@ -228,7 +228,7 @@
 Q_AUTOTEST_EXPORT BIO_METHOD *q_BIO_s_mem();
 Q_AUTOTEST_EXPORT int q_BIO_write(BIO *a, const void *b, int c);
 int q_BN_num_bits(const BIGNUM *a);
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+#if (OPENSSL_VERSION_NUMBER >= 0x10100000L) && !defined(LIBRESSL_VERSION_NUMBER)
 int q_BN_is_word(BIGNUM *a, BN_ULONG w);
 #else
 // BN_is_word is implemented purely as a
@@ -241,7 +241,7 @@
 //
 // Users are required to include <openssl/bn.h>.
 #define q_BN_is_word BN_is_word
-#endif // OPENSSL_VERSION_NUMBER >= 0x10100000L
+#endif // (OPENSSL_VERSION_NUMBER >= 0x10100000L) && !defined(LIBRESSL_VERSION_NUMBER)
 BN_ULONG q_BN_mod_word(const BIGNUM *a, BN_ULONG w);
 #ifndef OPENSSL_NO_EC
 const EC_GROUP* q_EC_KEY_get0_group(const EC_KEY* k);
@@ -509,13 +509,13 @@
 
 // EC curves management
 size_t q_EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems);
-#if OPENSSL_VERSION_NUMBER >= 0x10002000L
+#if (OPENSSL_VERSION_NUMBER >= 0x10002000L) && !defined(LIBRESSL_VERSION_NUMBER)
 int q_EC_curve_nist2nid(const char *name);
-#endif // OPENSSL_VERSION_NUMBER >= 0x10002000L
+#endif // (OPENSSL_VERSION_NUMBER >= 0x10002000L) && !defined(LIBRESSL_VERSION_NUMBER)
 #endif // OPENSSL_NO_EC
-#if OPENSSL_VERSION_NUMBER >= 0x10002000L
+#if (OPENSSL_VERSION_NUMBER >= 0x10002000L) && !defined(LIBRESSL_VERSION_NUMBER)
 #define q_SSL_get_server_tmp_key(ssl, key) q_SSL_ctrl((ssl), SSL_CTRL_GET_SERVER_TMP_KEY, 0, (char *)key)
-#endif // OPENSSL_VERSION_NUMBER >= 0x10002000L
+#endif // (OPENSSL_VERSION_NUMBER >= 0x10002000L) && !defined(LIBRESSL_VERSION_NUMBER)
 
 // PKCS#12 support
 int q_PKCS12_parse(PKCS12 *p12, const char *pass, EVP_PKEY **pkey, X509 **cert, STACK_OF(X509) **ca);
--- qtbase/src/network/ssl/qsslcontext_openssl.cpp	2017-01-18 15:20:58.000000000 +0100
+++ qtbase/src/network/ssl/qsslcontext_openssl.cpp	2017-02-21 19:23:04.291975945 +0100
@@ -159,7 +159,7 @@
         m_npnContext.data = reinterpret_cast<unsigned char *>(m_supportedNPNVersions.data());
         m_npnContext.len = m_supportedNPNVersions.count();
         m_npnContext.status = QSslConfiguration::NextProtocolNegotiationNone;
-#if OPENSSL_VERSION_NUMBER >= 0x10002000L
+#if (OPENSSL_VERSION_NUMBER >= 0x10002000L) && !defined(LIBRESSL_VERSION_NUMBER)
         if (QSslSocket::sslLibraryVersionNumber() >= 0x10002000L) {
             // Callback's type has a parameter 'const unsigned char ** out'
             // since it was introduced in 1.0.2. Internally, OpenSSL's own code
--- qtbase/src/network/ssl/qsslsocket_opensslpre11.cpp	2017-11-30 14:49:46.000000000 +0100
+++ qtbase/src/network/ssl/qsslsocket_opensslpre11.cpp	2018-01-27 18:06:50.939540932 +0100
@@ -228,7 +228,7 @@
         q_SSL_load_error_strings();
         q_OpenSSL_add_all_algorithms_safe();
 
-#if OPENSSL_VERSION_NUMBER >= 0x10001000L
+#if (OPENSSL_VERSION_NUMBER >= 0x10001000L) && !defined(LIBRESSL_VERSION_NUMBER)
         if (q_SSLeay() >= 0x10001000L)
             QSslSocketBackendPrivate::s_indexForSSLExtraData = q_SSL_get_ex_new_index(0L, NULL, NULL, NULL, NULL);
 #endif
@@ -382,7 +382,7 @@
     } else {
         const unsigned char *proto = 0;
         unsigned int proto_len = 0;
-#if OPENSSL_VERSION_NUMBER >= 0x10002000L
+#if (OPENSSL_VERSION_NUMBER >= 0x10002000L) && !defined(LIBRESSL_VERSION_NUMBER)
         if (q_SSLeay() >= 0x10002000L) {
             q_SSL_get0_alpn_selected(ssl, &proto, &proto_len);
             if (proto_len && mode == QSslSocket::SslClientMode) {
@@ -405,7 +405,7 @@
     }
 #endif // OPENSSL_VERSION_NUMBER >= 0x1000100fL ...
 
-#if OPENSSL_VERSION_NUMBER >= 0x10002000L
+#if (OPENSSL_VERSION_NUMBER >= 0x10002000L) && !defined(LIBRESSL_VERSION_NUMBER)
     if (q_SSLeay() >= 0x10002000L && mode == QSslSocket::SslClientMode) {
         EVP_PKEY *key;
         if (q_SSL_get_server_tmp_key(ssl, &key))