--- openssl.c	2020-11-24 10:03:35 UTC
+++ openssl.c	
@@ -6496,7 +6496,9 @@ static void php_openssl_load_cipher_mode(struct php_op
 	int cipher_mode = EVP_CIPHER_mode(cipher_type);
 	memset(mode, 0, sizeof(struct php_openssl_cipher_mode));
 	switch (cipher_mode) {
-#if PHP_OPENSSL_API_VERSION >= 0x10100
+/* Since OpenSSL 1.1, all AEAD ciphers use a common framework. We check for
+ * EVP_CIPH_OCB_MODE, because LibreSSL does not support it. */
+#ifdef EVP_CIPH_OCB_MODE
 		case EVP_CIPH_GCM_MODE:
 		case EVP_CIPH_OCB_MODE:
 		case EVP_CIPH_CCM_MODE: