(usagi-users 03636) usagi compile error

Hi..I have a problem about usagi compile 

My Linux Kernel Version is 2.6.11-1.1369_FC4smp

I compiled usagi-linux26-sV6READYP1-20050121_20050124.tar.bz2 

Error is below 

vers/char/i8k.c:534: warning: pointer targets in return differ in signedness
CC [M] drivers/char/hw_random.o
CC [M] drivers/char/ppdev.o
CC [M] drivers/char/hangcheck-timer.o
CC drivers/cpufreq/cpufreq.o
CC drivers/cpufreq/cpufreq_performance.o
CC drivers/cpufreq/cpufreq_userspace.o
CC drivers/cpufreq/freq_table.o
LD drivers/cpufreq/built-in.o
CC [M] drivers/cpufreq/cpufreq_powersave.o
CC [M] drivers/cpufreq/cpufreq_ondemand.o
LD drivers/firmware/built-in.o
CC [M] drivers/firmware/edd.o
drivers/firmware/edd.c: In function ???edd_show_host_bus???:
drivers/firmware/edd.c:150: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:153: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:154: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:161: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:162: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:163: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c: In function ???edd_show_interface???:
drivers/firmware/edd.c:195: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:199: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:202: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:206: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:209: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:212: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:216: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:219: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:222: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c: In function ???edd_dev_is_type???:
drivers/firmware/edd.c:651: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
drivers/firmware/edd.c:652: warning: pointer targets in passing argument 1 of ???strncmp??? differ in signedness
LD drivers/i2c/algos/built-in.o
CC [M] drivers/i2c/algos/i2c-algo-bit.o
In file included from drivers/i2c/algos/i2c-algo-bit.c:31:
include/linux/i2c.h:58: error: array type has incomplete element type
include/linux/i2c.h:197: error: array type has incomplete element type
drivers/i2c/algos/i2c-algo-bit.c: In function 'sendbytes':
drivers/i2c/algos/i2c-algo-bit.c:337: warning: pointer targets in initialization differ in signedness
drivers/i2c/algos/i2c-algo-bit.c: In function 'readbytes':
drivers/i2c/algos/i2c-algo-bit.c:370: warning: pointer targets in initialization differ in signedness
make[3]: *** [drivers/i2c/algos/i2c-algo-bit.o] error 1
make[2]: *** [drivers/i2c/algos] error 2
make[1]: *** [drivers/i2c] error 2
make: *** [drivers] error 2


What can I do..

Please.. I will wait your response..