交叉编译iperf3

./configure --prefix=/opt/rootfs/opt --host=arm-cortex_a9-linux CC=arm-cortex_a9-linux-gnueabi-gcc CFLAGS=-static --enable-static LDFLAGS=-static --disable-shared
./configure --prefix=/home/xpy/pkg/iperf-3.1.3/build --host=arm-hisiv200-linux CC=arm-hisiv200-linux-gnueabi-gcc CFLAGS=-static --enable-static LDFLAGS=-static --disable-shared