make kernel failiure (/usr/src/sys/i386/i386/trap.c)

cc -c -O2 -pipe -fno-strict-aliasing -march=athlon -Wall 
-Wredundant-decls -Wnested-externs -Wstrict-prototypes  
-Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual  
-fformat-extensions -std=c99  -nostdinc -I-  -I. -I/usr/src/sys 
-I/usr/src/sys/contrib/altq -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS 
-include opt_global.h -fno-common -finline-limit=8000 --param 
inline-unit-growth=100 --param large-function-growth=1000  
-mno-align-long-strings -mpreferred-stack-boundary=2  -mno-mmx 
-mno-3dnow -mno-sse -mno-sse2 -mno-sse3 -ffreestanding -Werror  
/usr/src/sys/i386/i386/sys_machdep.c
cc -c -O2 -pipe -fno-strict-aliasing -march=athlon -Wall 
-Wredundant-decls -Wnested-externs -Wstrict-prototypes  
-Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual  
-fformat-extensions -std=c99  -nostdinc -I-  -I. -I/usr/src/sys 
-I/usr/src/sys/contrib/altq -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS 
-include opt_global.h -fno-common -finline-limit=8000 --param 
inline-unit-growth=100 --param large-function-growth=1000  
-mno-align-long-strings -mpreferred-stack-boundary=2  -mno-mmx 
-mno-3dnow -mno-sse -mno-sse2 -mno-sse3 -ffreestanding -Werror  
/usr/src/sys/i386/i386/trap.c
/usr/src/sys/i386/i386/trap.c: In function `trap':
/usr/src/sys/i386/i386/trap.c:191: warning: implicit declaration of 
function `ipi_nmi_handler'
/usr/src/sys/i386/i386/trap.c:191: warning: nested extern declaration of 
`ipi_nmi_handler'
*** Error code 1

Stop in /usr/obj/usr/src/sys/DP.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.
root_at_fbsd.local:/usr/src#