From d8aed659e199e726539dad74d65811db9a148049 Mon Sep 17 00:00:00 2001
From: Olivier Giniaux <oginiaux@smartadserver.com>
Date: Mon, 27 May 2024 22:22:10 +0200
Subject: [PATCH] Use rustversion to add compatibility with older rustc
 versions

---
 Cargo.toml    | 2 +-
 src/hasher.rs | 9 ++++++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index ea1fce6..8a2b686 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,7 @@ bench-plot = []
 hybrid = []
 
 [dependencies]
-# No dependencies!
+rustversion = "1.0" # Compile-time cfg based on rustc version for compatibility
 
 [dev-dependencies]
 rand = "0.8"
diff --git a/src/hasher.rs b/src/hasher.rs
index 2254722..8867ca3 100644
--- a/src/hasher.rs
+++ b/src/hasher.rs
@@ -132,10 +132,17 @@ impl Hasher for GxHasher {
 #[derive(Clone, Debug)]
 pub struct GxBuildHasher(State);
 
+#[rustversion::before(1.76)]
+use std::collections::hash_map::RandomState;
+
+#[rustversion::since(1.76)]
+use std::hash::RandomState;
+
 impl Default for GxBuildHasher {
     #[inline]
     fn default() -> GxBuildHasher {
-        let random_state = std::hash::RandomState::new();
+
+        let random_state = RandomState::new();
         unsafe {
             let state: State = std::mem::transmute(random_state);
             GxBuildHasher(state)