Porting FreeRTOS to lwIP 1.4.0

Has anyone got a FreeRTOS ported to lwip 1.4.0? I have problems updating from 1.3.2. and I would be very happy if someone could help or share sys_arch layer.

Porting FreeRTOS to lwIP 1.4.0

See: http://interactive.freertos.org/entries/20290712-freertos-win32-project-with-lwip-web-server and http://www.freertos.org/Free-RTOS-for-Xilinx-MicroBlaze-on-Spartan-6-FPGA.html Regards.