#[duckdb_entrypoint_c_api()] macro requires DUCKDB_EXTENSION_MIN_DUCKDB_VERSION and DUCKDB_EXTENSION_NAME envvars if used without arguments. When running make debug, these are provided form the Makefile, so the build succeeds. However, rust-analyzer doesn't know the values.

Can this be solved? I think one option is to add these lines to .cargo/config.toml. If this looks good, I can create a pull request.

[env]
DUCKDB_EXTENSION_MIN_DUCKDB_VERSION = "v1.2.0"
DUCKDB_EXTENSION_NAME = "rusty_quack"