busybox-1.17.3/scripts/gcc-version.sh: line 11: arm-linux-gcc: command not found

 --- 1.Makefile里面的1.ARCH ?=   CROOS_COMPILE?= 2.权限 3.make menuconfig 完后yes，保存post -------------------------------------------------------------file sem_num.c:(.text+0x1d1): undefined reference to `sem

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