Based on https://svnweb.freebsd.org/ports/head/security/php56-openssl/files/patch-openssl11?view=markup&pathrev=482905

Bug: https://bugs.gentoo.org/678230

--- a/ext/openssl/openssl.c
+++ b/ext/openssl/openssl.c
@@ -538,7 +538,7 @@ ZEND_GET_MODULE(openssl)
 #endif
 
 /* {{{ OpenSSL compatibility functions and macros */
-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined (LIBRESSL_VERSION_NUMBER)
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 #define EVP_PKEY_get0_RSA(_pkey) _pkey->pkey.rsa
 #define EVP_PKEY_get0_DH(_pkey) _pkey->pkey.dh
 #define EVP_PKEY_get0_DSA(_pkey) _pkey->pkey.dsa
@@ -650,7 +650,7 @@ int DSA_set0_key(DSA *d, BIGNUM *pub_key, BIGNUM *priv_key)
 	return 1;
 }
 
-#if OPENSSL_VERSION_NUMBER < 0x10002000L || defined (LIBRESSL_VERSION_NUMBER)
+#if OPENSSL_VERSION_NUMBER < 0x10002000L
 #define EVP_PKEY_id(_pkey) _pkey->type
 #define EVP_PKEY_base_id(_key) EVP_PKEY_type(_key->type)
 
@@ -1100,7 +1100,7 @@ static void php_openssl_dispose_config(struct php_x509_request * req TSRMLS_DC)
 }
 /* }}} */
 
-#if defined(PHP_WIN32) || (OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER))
+#if defined(PHP_WIN32) || OPENSSL_VERSION_NUMBER >= 0x10100000L
 #define PHP_OPENSSL_RAND_ADD_TIME() ((void) 0)
 #else
 #define PHP_OPENSSL_RAND_ADD_TIME() php_openssl_rand_add_timeval()
@@ -1186,7 +1186,7 @@ static EVP_MD * php_openssl_get_evp_md_from_algo(long algo) { /* {{{ */
 			mdtype = (EVP_MD *) EVP_md2();
 			break;
 #endif
-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined (LIBRESSL_VERSION_NUMBER)
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 		case OPENSSL_ALGO_DSS1:
 			mdtype = (EVP_MD *) EVP_dss1();
 			break;
@@ -1314,7 +1314,7 @@ PHP_MINIT_FUNCTION(openssl)
 #ifdef HAVE_OPENSSL_MD2_H
 	REGISTER_LONG_CONSTANT("OPENSSL_ALGO_MD2", OPENSSL_ALGO_MD2, CONST_CS|CONST_PERSISTENT);
 #endif
-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined (LIBRESSL_VERSION_NUMBER)
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 	REGISTER_LONG_CONSTANT("OPENSSL_ALGO_DSS1", OPENSSL_ALGO_DSS1, CONST_CS|CONST_PERSISTENT);
 #endif
 #if OPENSSL_VERSION_NUMBER >= 0x0090708fL
@@ -3368,7 +3368,7 @@ PHP_FUNCTION(openssl_csr_get_public_key)
 		RETURN_FALSE;
 	}
 
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
 	/* Due to changes in OpenSSL 1.1 related to locking when decoding CSR,
 	 * the pub key is not changed after assigning. It means if we pass
 	 * a private key, it will be returned including the private part.
@@ -3379,7 +3379,7 @@ PHP_FUNCTION(openssl_csr_get_public_key)
 	/* Retrieve the public key from the CSR */
 	tpubkey = X509_REQ_get_pubkey(csr);
 
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
 	/* We need to free the CSR as it was duplicated */
 	X509_REQ_free(csr);
 #endif