sqlite-vec: armeabi-v7a libsqlite_vec.so fails to load — undefined `ceil`, libm.so missing from NEEDED

[jash-aeio]

Version: @op-engineering/op-sqlite 18.2.1 (latest), with "op-sqlite": { "sqliteVec": true }
Environment: React Native 0.86.3 (New Architecture), Expo SDK 57, release build with -PreactNativeArchitectures=armeabi-v7a
Device: Infinix X6823, Android 12, 32-bit userland (ro.product.cpu.abilist = armeabi-v7a,armeabi)

What happens

The first open() throws:

Exception in HostFunction: dlopen failed: cannot locate symbol "ceil" referenced by "/data/app/~~…/base.apk!/lib/armeabi-v7a/libsqlite_vec.so"

Cause

The prebuilt android/src/main/libsqlitevec/armeabi-v7a/libsqlite_vec.so leaves ceil undefined but does not list libm.so as a dependency. Output from llvm-readelf (NDK 27.1.12297006):

$ llvm-readelf -d armeabi-v7a/libsqlite_vec.so | grep NEEDED
  0x00000001 (NEEDED)       Shared library: [libdl.so]
  0x00000001 (NEEDED)       Shared library: [libc.so]

$ llvm-readelf --dyn-syms armeabi-v7a/libsqlite_vec.so | awk '$7=="UND"' | grep ceil
  ... UND ceil

The arm64-v8a build has the same NEEDED list but no undefined ceil (presumably the compiler inlines it there), so the failure only shows on 32-bit ARM. On Android, ceil lives in libm.so, and the dynamic linker resolves a library's undefined symbols only from its own NEEDED entries. I only checked armeabi-v7a and arm64-v8a, not x86 / x86_64.

Likely fix

Link the 32-bit libsqlite_vec.so against libm (e.g. -lm) so that libm.so appears in NEEDED.

Repro

1. Set "op-sqlite": { "sqliteVec": true } in package.json.
2. Build a release APK for armeabi-v7a and install it on a 32-bit Android device.
3. Call open({ name: 'test.db' }).

[ospfranco]

This is a failure on sqlite-vec itself. Please report it on its own repo and then when it's fixed/updated, we will rebuild the embedded versions in op-sqlite