The as-installed testing for this package
did not pass
(log).
The package has a debian/watch file, but the last attempt
to use it for checking for newer upstream versions failed with
an error:
In debian/watch no matching files for watch line https://github.com/libspatialindex/libspatialindex/releases (?:.*?/archive/)?(?:rel|v|libspatialindex)?[\-\_]?(\d\S+)\.(?:tgz|tbz|txz|(?:tar\.(?:gz|bz2|xz)))