GatewayENC28J60 Sketch fails to compile with DHCP

[SergioRius]

It only compiles if the define for MY_IP_ADDRESS is uncommented. So to reproduce, just comment it (and the other two MY_IP_...)
Output:

C:\Users\User\AppData\Local\Temp\ccceJW4d.ltrans0.ltrans.o: In function `gatewayTransportConnect()':

W:\sketches\libraries\MySensors/core/MyGatewayTransportMQTTClient.cpp:171: undefined reference to `UIPEthernetClass::begin(unsigned char const*)'

collect2.exe: error: ld returned 1 exit status

Error compilando para la tarjeta Arduino/Genuino Uno.