sqlite-preupdate-hook fails to build for aarch64-apple-ios-sim on sqlx 0.8.6

[polw1]

I have found these related issues/pull requests

#4241
#4240
#4161
#3844
#3928

Description

sqlx 0.8.6 fails to build for aarch64-apple-ios-sim.

The failure happens inside libsqlite3-sys v0.30.1 — which is triggered by enabling the sqlite-preupdate-hook feature, since that feature.

The root cause appears to be the libsqlite3-sys version pinned by the sqlx 0.8.x line (= 0.30.1) rather than the feature itself.

In my tests, the same build succeeds once libsqlite3-sys is pushed to 0.35.0.

Reproduction steps

Create a new crate with:

[package]
name = "sqlx-ios-simulator-bug"
version = "0.1.0"
edition = "2024"

[dependencies]
sqlx = { version = "0.8.6", default-features = false, features = ["runtime-tokio", "sqlite", "sqlite-preupdate-hook"] }

Then run:

rustup target add aarch64-apple-ios-sim
cargo build --target aarch64-apple-ios-sim

Output:

error: failed to run custom build command for `libsqlite3-sys v0.30.1`

Caused by:
  process didn't exit successfully: `/private/tmp/sqlx-ios-simulator-bug/target/debug/build/libsqlite3-sys-55e105bdd58e8206/build-script-build` (exit status: 101)
  --- stdout
  cargo:rerun-if-env-changed=LIBSQLITE3_SYS_USE_PKG_CONFIG
  cargo:rerun-if-env-changed=LIBSQLITE3_SYS_BUNDLING

  --- stderr

  thread 'main' (2638217) panicked at /Users/dev/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/libsqlite3-sys-0.30.1/build.rs:620:33:
  could not run bindgen on header sqlite3/sqlite3.h
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

SQLx version

0.8.6

Enabled SQLx features

runtime-tokio, sqlite, sqlite-preupdate-hook

Database server and version

SQLite; no external database server involved. The failure happens during build in libsqlite3-sys/bindgen before runtime.

Operating system

macOS 26

Rust version

1.95

[polw1]

Since this can be fixed with a newer libsqlite3-sys version, and given the related context, I think this is another failure case supporting a 0.8.x hotfix/patch release.

If the preferred path is 0.9.x, is there an expected timeline for a stable release?

I would be happy to help with iOS or other environment validation/testing, or provide any additional details needed.