diff --git a/Demo/PPC405_Xilinx_Virtex4_GCC/__xps/rtosdemo_compiler.opt b/Demo/PPC405_Xilinx_Virtex4_GCC/__xps/rtosdemo_compiler.opt
index 5f71f24e7..ae054d203 100644
--- a/Demo/PPC405_Xilinx_Virtex4_GCC/__xps/rtosdemo_compiler.opt
+++ b/Demo/PPC405_Xilinx_Virtex4_GCC/__xps/rtosdemo_compiler.opt
@@ -1,10 +1,10 @@
 ppc405_0
-RTOSDEMO_SOURCES = RTOSDemo/../../Common/Minimal/BlockQ.c RTOSDemo/../../Common/Minimal/blocktim.c RTOSDemo/../../Common/Minimal/comtest.c RTOSDemo/../../Common/Minimal/countsem.c RTOSDemo/../../Common/Minimal/death.c RTOSDemo/../../Common/Minimal/dynamic.c RTOSDemo/../../Common/Minimal/flash.c RTOSDemo/../../Common/Minimal/GenQTest.c RTOSDemo/../../Common/Minimal/integer.c RTOSDemo/../../Common/Minimal/QPeek.c RTOSDemo/../../Common/Minimal/recmutex.c RTOSDemo/../../Common/Minimal/semtest.c RTOSDemo/../../../Source/tasks.c RTOSDemo/../../../Source/list.c RTOSDemo/../../../Source/queue.c RTOSDemo/../../../Source/portable/GCC/PPC405_Xilinx/port.c RTOSDemo/main.c RTOSDemo/serial/serial.c RTOSDemo/partest/partest.c RTOSDemo/../../../Source/portable/GCC/PPC405_Xilinx/portasm.S RTOSDemo/../../../Source/portable/MemMang/heap_2.c 
+RTOSDEMO_SOURCES = RTOSDemo/../../Common/Minimal/BlockQ.c RTOSDemo/../../Common/Minimal/blocktim.c RTOSDemo/../../Common/Minimal/comtest.c RTOSDemo/../../Common/Minimal/countsem.c RTOSDemo/../../Common/Minimal/death.c RTOSDemo/../../Common/Minimal/dynamic.c RTOSDemo/../../Common/Minimal/flash.c RTOSDemo/../../Common/Minimal/GenQTest.c RTOSDemo/../../Common/Minimal/integer.c RTOSDemo/../../Common/Minimal/QPeek.c RTOSDemo/../../Common/Minimal/recmutex.c RTOSDemo/../../Common/Minimal/semtest.c RTOSDemo/../../../Source/tasks.c RTOSDemo/../../../Source/list.c RTOSDemo/../../../Source/queue.c RTOSDemo/../../../Source/portable/GCC/PPC405_Xilinx/port.c RTOSDemo/main.c RTOSDemo/serial/serial.c RTOSDemo/partest/partest.c RTOSDemo/../../../Source/portable/GCC/PPC405_Xilinx/portasm.S RTOSDemo/../../../Source/portable/MemMang/heap_2.c  RTOSDemo/flop/flop.c RTOSDemo/flop/flop-reg-test.c
 RTOSDEMO_HEADERS = RTOSDemo/FreeRTOSConfig.h 
 RTOSDEMO_CC = powerpc-eabi-gcc
 RTOSDEMO_CC_SIZE = powerpc-eabi-size
 RTOSDEMO_CC_OPT = -O0
-RTOSDEMO_CFLAGS = -I./ppc405_0/include/  -IRTOSDemo/   -I. -I./RTOSDemo/ -I../Common/include/ -I../../Source/include/ -I./ppc405_0/include/ -I./ppc405_0/include -D GCC_PPC405 -mregnames -Wextra
+RTOSDEMO_CFLAGS = -I./RTOSDemo/flop -I./ppc405_0/include/  -IRTOSDemo/   -I. -I./RTOSDemo/ -I../Common/include/ -I../../Source/include/ -I./ppc405_0/include/ -I./ppc405_0/include -D GCC_PPC405 -mregnames -Wextra
 RTOSDEMO_CC_SEARCH = # -B
 RTOSDEMO_LIBPATH = -L./ppc405_0/lib/ # -L
 RTOSDEMO_INCLUDES = -I./ppc405_0/include/  -IRTOSDemo/ # -I