crypto: check for SSL_COMP_get_compression_methods()

Function was named SSL_COMP_get_compression_method() (singular)
in OpenSSL 0.9.7 and older.

Fixes nodejs#1242.

src/node_crypto.cc

@@ -3638,9 +3638,14 @@ void InitCrypto(Handle<Object> target) {
   ERR_load_crypto_strings();
 
   // Turn off compression. Saves memory - do it in userland.
-#ifdef SSL_COMP_get_compression_methods
-  // Before OpenSSL 0.9.8 this was not possible.
-  STACK_OF(SSL_COMP)* comp_methods = SSL_COMP_get_compression_methods();
+#if !defined(OPENSSL_NO_COMP)
+  STACK_OF(SSL_COMP)* comp_methods =
+#if OPENSSL_VERSION_NUMBER < 0x00908000L
+    SSL_COMP_get_compression_method()
+#else
+    SSL_COMP_get_compression_methods()
+#endif
+  ;
   sk_SSL_COMP_zero(comp_methods);
   assert(sk_SSL_COMP_num(comp_methods) == 0);
 #endif