busybox时出错

编译busybox时‘O_NOATIME’错误及解决办法  

编译busybox是出错：

coreutils/fsync.c: In function `fsync_main':
coreutils/fsync.c:27: error: `O_NOATIME' undeclared (first use in this function)
coreutils/fsync.c:27: error: (Each undeclared identifier is reported only once
coreutils/fsync.c:27: error: for each function it appears in.)
make[1]: *** [coreutils/fsync.o]  error1
make: *** [coreutils]  error2

解决：
把Makefile 里面的cross_compile路径改成(usr/local/arm/4.3.2/bin/arm-linux-），这样之后执行make就通过了。

然后make install
编译成功。