Missing alsa-capabilities script

The alsa-capabilities script is missing on helpers/ when cloning. Using the script from ur gitlab gives this error:

$ ./mpd-configure                                     
./mpd-configure sourced.
./mpd-configure: line 453: return_alsa_interface: command not found
error in return_alsa_interface.
Error in mpd-configure (v0.9.9):
do_configure: error running `fetch_alsa_hwaddresses'