$ git clone -n http://fedora.riscv.rocks:3000/rpms/libcxx.git /var/lib/mock/f37-build-643061-72104/root/chroot_tmpdir/scmroot/libcxx
Cloning into '/var/lib/mock/f37-build-643061-72104/root/chroot_tmpdir/scmroot/libcxx'...
$ git reset --hard 18438734badb071876bbaa05a0649708d67fb553
HEAD is now at 1843873 Remove -DLIBCXX_CXX_ABI_LIBRARY_PATH for static