"reserved" is protoc keyword now.

--- PokerTH-1.1.1-src/pokerth.proto.orig	2014-01-10 22:18:20.743643130 +0100
+++ PokerTH-1.1.1-src/pokerth.proto	2017-12-12 20:56:47.300267594 +0100
@@ -701,7 +701,7 @@
 
 message ErrorMessage {
 	enum ErrorReason {
-		reserved = 0;
+		reserved_ = 0;
 		initVersionNotSupported = 1;
 		initServerFull = 2;
 		initAuthFailure = 3;
--- PokerTH-1.1.1-src/src/net/common/netpacket.cpp.orig	2014-01-10 22:18:20.917643110 +0100
+++ PokerTH-1.1.1-src/src/net/common/netpacket.cpp	2017-12-12 21:02:41.138399391 +0100
@@ -249,7 +249,7 @@
 		retVal = ErrorMessage::sessionTimeout;
 		break;
 	default :
-		retVal = ErrorMessage::reserved;
+		retVal = ErrorMessage::reserved_;
 		break;
 	}
 	return retVal;