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1976986318 I_kwDOCGYnMM511mrO 599 Cannot find spatialite on arm64 linux MikeCoats 37802088 closed 0     1 2023-11-03T22:05:51Z 2023-11-04T01:06:31Z 2023-11-04T00:33:28Z CONTRIBUTOR  

Initially, I found an issue in datasette where it wouldn’t find spatialite when running on my Radxa Rock 5B - an RK3588 powered SBC, running the arm64 build of Debian Bullseye. I confirmed the same behaviour on my Raspberry Pi 4 - a BCM2711 powered SBC, running the arm64 build of Debian Bookworm.

$ datasette --load-extension=spatialite example.db Error: Could not find SpatiaLite extension

I did some digging and realised the issue originates in this project. Even with the libsqlite3-mod-spatialite package installed, pytest skips all of the GIS tests in the project.

``` $ apt list --installed | grep spatial […] libsqlite3-mod-spatialite/stable,now 5.0.1-3 arm64 [installed]

$ ls -l /usr/lib//spatial* lrwxrwxrwx 1 root root 23 Dec 1 2022 /usr/lib/aarch64-linux-gnu/mod_spatialite.so -> mod_spatialite.so.7.1.0 lrwxrwxrwx 1 root root 23 Dec 1 2022 /usr/lib/aarch64-linux-gnu/mod_spatialite.so.7 -> mod_spatialite.so.7.1.0 -rw-r--r-- 1 root root 7348584 Dec 1 2022 /usr/lib/aarch64-linux-gnu/mod_spatialite.so.7.1.0 ```

$ pytest tests/test_get.py ...... [ 73%] tests/test_gis.py ssssssssssss [ 75%] tests/test_hypothesis.py .... [ 75%]

I tracked the issue down to the find_sqlite() function in the utils.py file. The SPATIALITE_PATHS array doesn’t have an entry for the location of this module on arm64 linux.

 sqlite-utils 140912432 issue     
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1977004379 PR_kwDOCGYnMM5elFZf 600 Add spatialite arm64 linux path MikeCoats 37802088 closed 0     5 2023-11-03T22:23:26Z 2023-11-04T00:34:33Z 2023-11-04T00:31:49Z CONTRIBUTOR simonw/sqlite-utils/pulls/600

According to both Debian and Ubuntu, the correct “target triple” for arm64 is aarch64-linux-gnu, so we should be looking in /usr/lib/aarch64-linux-gnu for mod_spatialite.so.

I can confirm that on both of my Debian arm64 SBCs, libsqlite3-mod-spatialite installs to that path.

$ ls -l /usr/lib/*/*spatial* lrwxrwxrwx 1 root root 23 Dec 1 2022 /usr/lib/aarch64-linux-gnu/mod_spatialite.so -> mod_spatialite.so.7.1.0 lrwxrwxrwx 1 root root 23 Dec 1 2022 /usr/lib/aarch64-linux-gnu/mod_spatialite.so.7 -> mod_spatialite.so.7.1.0 -rw-r--r-- 1 root root 7348584 Dec 1 2022 /usr/lib/aarch64-linux-gnu/mod_spatialite.so.7.1.0

This is a set of before and after snippets of pytest’s output for this PR.

Before

$ pytest tests/test_get.py ...... [ 73%] tests/test_gis.py ssssssssssss [ 75%] tests/test_hypothesis.py .... [ 75%]

After

$ pytest tests/test_get.py ...... [ 73%] tests/test_gis.py ............ [ 75%] tests/test_hypothesis.py .... [ 75%]

Issue: #599

:books: Documentation preview :books:: https://sqlite-utils--600.org.readthedocs.build/en/600/

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