Building as an extension for Android

[gis-wes]

Have any pointers on additions to cmake config when building for android?

have run into the following when adding spatial to the extension list as shown at:
https://duckdb.org/docs/stable/dev/building/android

22.21 CMake Error at $BUILD_PATH/_deps/spatial_extension_fc-src/CMakeLists.txt:52 (find_package):
22.21   Could not find a package configuration file provided by "PROJ" with any of
22.21   the following names:
22.21
22.21     PROJConfig.cmake
22.21     proj-config.cmake
22.21
22.21   Add the installation prefix of "PROJ" to CMAKE_PREFIX_PATH or set
22.21   "PROJ_DIR" to a directory containing one of the above files.  If "PROJ"
22.21   provides a separate development package or SDK, be sure it has been
22.21   installed.
22.21
22.21
22.22 -- Configuring incomplete, errors occurred!

Have opened an issue for the android doc page at:
duckdb/duckdb-web#6229

[gis-wes]

Seems vcpkg was not in play with my previous attempt.

[bangonkali]

Hi @gis-wes you might want to checkout https://github.com/bangonkali/capacitor-duckdb

Screen_Recording_20251204_231533_example-app.mp4

[gis-wes]

@bangonkali - Good docs and easy to follow build scripts in there. I landed on something very similar. I can learn a few things here still. Thanks!