Comment 4 for bug 1864920

Or were you asking for this:

pi@autoradio:~ $ apt-cache show libgeographic17
Package: libgeographic17
Source: geographiclib
Version: 1.49-4
Architecture: armhf
Maintainer: Debian GIS Project <email address hidden>
Installed-Size: 634
Depends: libc6 (>= 2.4), libgcc1 (>= 1:4.0), libstdc++6 (>= 5.2)
Suggests: geographiclib-tools
Conflicts: libgeographic13, libgeographiclib10
Replaces: libgeographic13, libgeographiclib10
Multi-Arch: same
Homepage: https://geographiclib.sourceforge.io/
Priority: optional
Section: libs
Filename: pool/main/g/geographiclib/libgeographic17_1.49-4_armhf.deb
Size: 240352
SHA256: e627cd8aa161bb2526e3bb0942d871262ec45f9c35bd28fcee036c5615a2306e
SHA1: 1fb23bf4f60612a888662c22fddf9d758335d4c5
MD5sum: afb33f3174123f157e0d738867fc5da6
Description: C++ library to solve some geodesic problems -- library
 GeographicLib is a small set of C++ classes for converting between
 geographic, UTM, UPS, MGRS, geocentric, and local cartesian coordinates,
 for geoid calculations, and for computing geodesic. It is a suitable
 replacement for the core functionality provided by NGA Geotrans.
 .
 This package contains the GeographicLib shared library used at run-time
 by applications.
Description-md5: 8b449a38cb15d196f2fe1f42f2258621