$ git clone -n https://gitee.com/src-anolis-os/x3270.git /var/lib/mock/dist-an8-build-74034-38952/root/chroot_tmpdir/scmroot/x3270 Cloning into '/var/lib/mock/dist-an8-build-74034-38952/root/chroot_tmpdir/scmroot/x3270'... $ git reset --hard origin/a8 HEAD is now at 707ffb8 use extern in header files when declaring global variables