From 2f88757efebf52cb1c4f3bea76e00e8cfcf1ef4b Mon Sep 17 00:00:00 2001
From: Stephen Chung <schungx@live.com>
Date: Fri, 21 Oct 2022 19:02:40 +0800
Subject: [PATCH] Fix builds.

---
 src/optimizer.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/optimizer.rs b/src/optimizer.rs
index 42e9dd90..bd51a7c4 100644
--- a/src/optimizer.rs
+++ b/src/optimizer.rs
@@ -1189,7 +1189,7 @@ fn optimize_expr(expr: &mut Expr, state: &mut OptimizerState, _chaining: bool) {
                             #[cfg(not(feature = "no_function"))]
                             let lib = state.lib;
                             #[cfg(feature = "no_function")]
-                            let lib = &[];
+                            let lib = &[][..];
 
                             let context = (state.engine, x.name.as_str(), lib).into();
                             let (first, second) = arg_values.split_first_mut().unwrap();