Next attempt to fix bug #80368

Apparently treating LibreSSL as OpenSSL 1.1 is not just something
we did in our code, it's something that upstream LibreSSL claims,
despite not actually being compatible. Duh.

Check for EVP_CIPH_OCB_MODE instead, which should reliably
determine support...

Author: nikic

ext/openssl/openssl.c

@@ -6496,8 +6496,9 @@ static void php_openssl_load_cipher_mode(struct php_openssl_cipher_mode *mode, c
 	int cipher_mode = EVP_CIPHER_mode(cipher_type);
 	memset(mode, 0, sizeof(struct php_openssl_cipher_mode));
 	switch (cipher_mode) {
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-		/* Note: While OpenSSL 1.1 supports OCB mode, LibreSSL does not support it. */
+#ifdef EVP_CIPH_OCB_MODE
+		/* Since OpenSSL 1.1, all AEAD ciphers use a common framework. We check for
+		 * EVP_CIPH_OCB_MODE, because LibreSSL does not support it. */
 		case EVP_CIPH_GCM_MODE:
 		case EVP_CIPH_OCB_MODE:
 		case EVP_CIPH_CCM_MODE: