【求助】armv4l-unknown-linux-gcc: Command not found

arm9,samsungs3c2410,进行到mizilinux安装和编译时
make zImage 出错:
/opt/host/armv4l/bin/armv4l-unknown-linux-gcc -D__KERNEL__ -I/linuette/target/bo
x/usr/src/kernel/include -Wall -Wstrict-prototypes -Wno-trigraphs -Os -mapcs -fn
o-strict-aliasing -fno-common -fno-common -pipe -mapcs-32 -march=armv4 -mtune=ar
m9tdmi -mshort-load-bytes -msoft-float   -DKBUILD_BASENAME=main -c -o init/main.
o init/main.c
make: /opt/host/armv4l/bin/armv4l-unknown-linux-gcc: Command not found
make: *** [init/main.o] Error 127

why????