Add backport for geographiclib

[f-fl0]

geographiclib is a dependency of robot_localization: https://github.com/seqsense/aports-ros-updater/runs/5313718420?check_suite_focus=true

[at-wat]

geographiclib seems containing both libraries and tools.
It would be better to split tools package from libraries package.
(On ubuntu, there seems be libgeographic17 and geographiclib-tools)

[f-fl0]

I would like to confirm I understood your comment correctly: you are suggesting to create a separate APKBUILD file in a geographiclib-tools folder that will compile and install only the tools from geographiclib. Is it correct?

I'm not sure what is the best way to split the library and the tools. Looking at the CMakeLists.txt file, it does not seem possible to skip the tools folder and also not possible to compile the tools folder content without the rest. With minor modifications i.e. commenting out these lines https://github.com/geographiclib/geographiclib/blob/920702bc36ea13c384686556f25fb6369141a8e1/CMakeLists.txt#L470-L474, the tools folder can be skipped during compilation thus we can install the libraries without the tools.
Unfortunately, it would require much more changes to CMakeLists.txt to be able to compile only the content of the tools folder. Another way would be to compile the whole thing in both geographiclib and geographiclib-tools but only copy what is relevant in /usr.

What do you think?

[at-wat]

I would like to confirm I understood your comment correctly: you are suggesting to create a separate APKBUILD file in a geographiclib-tools folder that will compile and install only the tools from geographiclib. Is it correct?

APKBUILD can generate multiple subpackages from single source.
See: https://wiki.alpinelinux.org/wiki/Creating_an_Alpine_package#subpackages
Example: https://github.com/seqsense/aports-ros-experimental/blob/master/backports/gtest/APKBUILD

[f-fl0]

Thank you for the links. I will look into that.