$ git clone -n https://gitee.com/zhangting0411/v4l-utils.git /var/lib/mock/dist-an23-build-228534-62409/root/chroot_tmpdir/scmroot/v4l-utils Cloning into '/var/lib/mock/dist-an23-build-228534-62409/root/chroot_tmpdir/scmroot/v4l-utils'... $ git reset --hard 4eeb05215915c26a19a09ee59a6e736b297dd8c1 HEAD is now at 4eeb052 use extern in header files when declaring global variables