Merge commit 'd803bfe2b1fe7f5e219e50ac20d6801a0a58ac75' as 'vendor/ruvector'

vendor/ruvector/patches/hnsw_rs/src/lib.rs

@@ -0,0 +1,30 @@
+#![cfg_attr(feature = "stdsimd", feature(portable_simd))]
+//
+// for logging (debug mostly, switched at compile time in cargo.toml)
+use env_logger::Builder;
+
+use lazy_static::lazy_static;
+
+pub mod api;
+pub mod datamap;
+pub mod filter;
+pub mod flatten;
+pub mod hnsw;
+pub mod hnswio;
+pub mod libext;
+pub mod prelude;
+
+// we impose our version of anndists
+pub use anndists;
+
+lazy_static! {
+    static ref LOG: u64 = init_log();
+}
+
+// install a logger facility
+#[allow(unused)]
+fn init_log() -> u64 {
+    Builder::from_default_env().init();
+    println!("\n ************** initializing logger *****************\n");
+    1
+}