I am getting build errors on WinAVR when I try to build the demo in FreeRTOS 4.8.0: Compiling: main.c avr-gcc -c -mmcu=atmega323 -I. -D GCC_MEGA_AVR -I. -I../../Source/include -I../C ommon/include -g -Os -fsigned-char -funsigned-bitfields -fpack-struct -fshort-en ums -Wall -Wextra -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-align -Wsi gn-compare -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wmissing -declarations -Wunused -Wa,-adhlns=main.lst  -std=gnu99 main.c -o main.o main.c: In function ‘main’: main.c:191: warning: pointer targets in passing argument 2 of ‘xTaskCreate’ diff er in signedness Compiling: regtest.c avr-gcc -c -mmcu=atmega323 -I. -D GCC_MEGA_AVR -I. -I../../Source/include -I../C ommon/include -g -Os -fsigned-char -funsigned-bitfields -fpack-struct -fshort-en ums -Wall -Wextra -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-align -Wsi gn-compare -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wmissing -declarations -Wunused -Wa,-adhlns=regtest.lst  -std=gnu99 regtest.c -o regtest. o regtest.c: In function ‘vStartRegTestTasks’: regtest.c:71: warning: pointer targets in passing argument 2 of ‘xTaskCreate’ di ffer in signedness regtest.c:72: warning: pointer targets in passing argument 2 of ‘xTaskCreate’ di ffer in signedness Compiling: ParTest/ParTest.c avr-gcc -c -mmcu=atmega323 -I. -D GCC_MEGA_AVR -I. -I../../Source/include -I../C ommon/include -g -Os -fsigned-char -funsigned-bitfields -fpack-struct -fshort-en ums -Wall -Wextra -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-align -Wsi gn-compare -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wmissing -declarations -Wunused -Wa,-adhlns=ParTest/ParTest.lst  -std=gnu99 ParTest/ParTe st.c -o ParTest/ParTest.o Compiling: serial/serial.c avr-gcc -c -mmcu=atmega323 -I. -D GCC_MEGA_AVR -I. -I../../Source/include -I../C ommon/include -g -Os -fsigned-char -funsigned-bitfields -fpack-struct -fshort-en ums -Wall -Wextra -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-align -Wsi gn-compare -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wmissing -declarations -Wunused -Wa,-adhlns=serial/serial.lst  -std=gnu99 serial/serial.c -o serial/serial.o Compiling: ../../Source/tasks.c avr-gcc -c -mmcu=atmega323 -I. -D GCC_MEGA_AVR -I. -I../../Source/include -I../C ommon/include -g -Os -fsigned-char -funsigned-bitfields -fpack-struct -fshort-en ums -Wall -Wextra -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-align -Wsi gn-compare -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wmissing -declarations -Wunused -Wa,-adhlns=../../Source/tasks.lst  -std=gnu99 ../../Sour ce/tasks.c -o ../../Source/tasks.o ../../Source/tasks.c: In function ‘vTaskSwitchContext’: ../../Source/tasks.c:1435: warning: dereferencing type-punned pointer will break strict-aliasing rules Compiling: ../../Source/queue.c avr-gcc -c -mmcu=atmega323 -I. -D GCC_MEGA_AVR -I. -I../../Source/include -I../C ommon/include -g -Os -fsigned-char -funsigned-bitfields -fpack-struct -fshort-en ums -Wall -Wextra -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-align -Wsi gn-compare -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wmissing -declarations -Wunused -Wa,-adhlns=../../Source/queue.lst  -std=gnu99 ../../Sour ce/queue.c -o ../../Source/queue.o ../../Source/queue.c:1196: error: conflicting types for ‘xQueueIsQueueEmptyFromI SR’ ../../Source/queue.c:128: error: previous declaration of ‘xQueueIsQueueEmptyFrom ISR’ was here ../../Source/queue.c:1218: error: conflicting types for ‘xQueueIsQueueFullFromIS R’ ../../Source/queue.c:129: error: previous declaration of ‘xQueueIsQueueFullFromI SR’ was here make: *** [../../Source/queue.o] Error 1

see https://sourceforge.net/forum/message.php?msg_id=4877178