NutConfigure make Output of Nut/OS 5.1.0 GCC 4.9.2

E:\DRV-NUT\ethernut_5.1.0>echo p1 = compiler version in dot x.y.z
p1 = compiler version in dot x.y.z

E:\DRV-NUT\ethernut_5.1.0>path=e:\DRV-NUT\ethernut_5.1.0\nut\tools\win32;e:\DRV-NUT\winavr_4.9.2\bin;e:\DRV-NUT\winavr_4.9.2\utils\bin;C:\windows\system32;C:\windows\system32\wbem;

E:\DRV-NUT\ethernut_5.1.0>nutconfigure -a./nutapp_avr_4.9.2 -c./nut/conf/ethernut21b.conf -mavr-gcc -b./nutbld_avr_4.9.2 create-buildtree
nutconfigure 2.0.10
Loading ./nut/conf/repository.nut...OK
Loading ./nut/conf/ethernut21b.conf...OK
Creating Makefiles for avr-gcc in ./nutbld_avr_4.9.2...OK
Creating header files in ./nutbld_avr_4.9.2...OK

E:\DRV-NUT\ethernut_5.1.0>cd nutbld_avr_4.9.2

E:\DRV-NUT\ethernut_5.1.0\nutbld_avr_4.9.2>make clean 1>makeclean.txt

E:\DRV-NUT\ethernut_5.1.0\nutbld_avr_4.9.2>make install 1>..\c510c492avr.txt
../.././nut/arch/avr/dev/ih_spi_stc.c: In function 'AvrSpiIrqCtl':
../.././nut/arch/avr/dev/ih_spi_stc.c:81:13: error: variable 'bval' set but not used [-Werror=unused-but-set-variable]
uint8_t bval;
^
cc1.exe: all warnings being treated as errors
make[1]: *** [avr/dev/ih_spi_stc.o] Error 1
make: *** [install] Error 2

E:\DRV-NUT\ethernut_5.1.0\nutbld_avr_4.9.2>cd ..

E:\DRV-NUT\ethernut_5.1.0>nutconfigure -a./nutapp_avr_4.9.2 -c./nut/conf/ethernut21b.conf -mavr-gcc -b./nutbld_avr_4.9.2 create-apptree
nutconfigure 2.0.10
Loading ./nut/conf/repository.nut...OK
Loading ./nut/conf/ethernut21b.conf...OK
OK
Copying ./nut/app
Copying ./nut/app/caltime
Copying ./nut/app/cppdemo
Copying ./nut/app/editconf
Copying ./nut/app/events
Copying ./nut/app/ftpd
Copying ./nut/app/httpd
Copying ./nut/app/httpd/sample
Copying ./nut/app/httpd/sample/flash
Copying ./nut/app/httpd_simple
Copying ./nut/app/httpd_simple/urom
Copying ./nut/app/httpd_upnp
Copying ./nut/app/httpd_upnp/sample
Copying ./nut/app/httpd_upnp/sample/flash
Copying ./nut/app/httpd_upnp/sample/upnp
Copying ./nut/app/icmp-udp
Copying ./nut/app/inetq
Copying ./nut/app/jtagtest
Copying ./nut/app/logtime
Copying ./nut/app/lua
Copying ./nut/app/owibus
Copying ./nut/app/pingnet
Copying ./nut/app/portdio
Copying ./nut/app/pppc
Copying ./nut/app/rs232d
Copying ./nut/app/simple
Copying ./nut/app/snmpd
Copying ./nut/app/tcps
Copying ./nut/app/threads
Copying ./nut/app/timers
Copying ./nut/app/twitest
Copying ./nut/app/uart
Copying ./nut/app/uhttpd_ajax
Copying ./nut/app/uhttpd_ajax/htdocs
Copying ./nut/app/uhttpd_auth
Copying ./nut/app/uhttpd_auth/htdocs
Copying ./nut/app/uhttpd_auth/htdocs/admin
Copying ./nut/app/uhttpd_auth/htdocs/user
Copying ./nut/app/uhttpd_form
Copying ./nut/app/uhttpd_form/htdocs
Copying ./nut/app/uhttpd_ssi
Copying ./nut/app/uhttpd_ssi/htdocs
Copying ./nut/app/uhttpd_tiny
Copying ./nut/app/uhttpd_tiny/htdocs
Copying ./nut/app/uhttpd_upload
Copying ./nut/app/uhttpd_upload/htdocs
Copying ./nut/app/xsvfexec

NutConfigure Make gcc details

make -C arch install
make[1]: Entering directory `E:/DRV-NUT/ethernut_5.1.0/nutbld_avr_4.9.2/arch'
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/os/context_gcc.lst -o avr/os/context_gcc.o ../.././nut/arch/avr/os/context_gcc.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ostimer.lst -o avr/dev/ostimer.o ../.././nut/arch/avr/dev/ostimer.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/wdt_avr.lst -o avr/dev/wdt_avr.o ../.././nut/arch/avr/dev/wdt_avr.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_adc.lst -o avr/dev/ih_adc.o ../.././nut/arch/avr/dev/ih_adc.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_analog_comp.lst -o avr/dev/ih_analog_comp.o ../.././nut/arch/avr/dev/ih_analog_comp.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_canit.lst -o avr/dev/ih_canit.o ../.././nut/arch/avr/dev/ih_canit.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_ee_ready.lst -o avr/dev/ih_ee_ready.o ../.././nut/arch/avr/dev/ih_ee_ready.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_int0.lst -o avr/dev/ih_int0.o ../.././nut/arch/avr/dev/ih_int0.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_int1.lst -o avr/dev/ih_int1.o ../.././nut/arch/avr/dev/ih_int1.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_int2.lst -o avr/dev/ih_int2.o ../.././nut/arch/avr/dev/ih_int2.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_int3.lst -o avr/dev/ih_int3.o ../.././nut/arch/avr/dev/ih_int3.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_int4.lst -o avr/dev/ih_int4.o ../.././nut/arch/avr/dev/ih_int4.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_int5.lst -o avr/dev/ih_int5.o ../.././nut/arch/avr/dev/ih_int5.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_int6.lst -o avr/dev/ih_int6.o ../.././nut/arch/avr/dev/ih_int6.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_int7.lst -o avr/dev/ih_int7.o ../.././nut/arch/avr/dev/ih_int7.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_ovrit.lst -o avr/dev/ih_ovrit.o ../.././nut/arch/avr/dev/ih_ovrit.c
avr-gcc -c -I../.././nutbld_avr_4.9.2/include -I../.././nut/include -DETHERNUT2 -D__HARVARD_ARCH__ -MD -MP -mmcu=atmega128 -Os -ffunction-sections -fno-delete-null-pointer-checks -Wall -Wstrict-prototypes -Werror -Wa,-a=avr/dev/ih_spi_stc.lst -o avr/dev/ih_spi_stc.o ../.././nut/arch/avr/dev/ih_spi_stc.c
make[1]: Leaving directory `E:/DRV-NUT/ethernut_5.1.0/nutbld_avr_4.9.2/arch'