Fix doc.rs build (#75)

* Fix docs.rs build

* Fix docs.rs build

* Use rustversion to add compatibility with older rustc versions

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "gxhash"
 authors = ["Olivier Giniaux"]
-version = "3.3.0"
+version = "3.3.1"
 edition = "2021"
 description = "GxHash non-cryptographic algorithm"
 license = "MIT"
@@ -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"

src/gxhash/platform/mod.rs

@@ -1,8 +1,10 @@
-#[cfg(all(any(target_arch = "arm", target_arch = "aarch64"), target_feature = "aes", target_feature = "neon"))]
+#[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
+#[cfg(all(target_feature = "aes", target_feature = "neon"))]
 #[path = "arm.rs"]
 mod platform;
 
-#[cfg(all(any(target_arch = "x86", target_arch = "x86_64"), target_feature = "aes", target_feature = "sse2"))]
+#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
+#[cfg(any(all(target_feature = "aes", target_feature = "sse2"), docsrs))] // docsrs bypasses the target_feature check
 #[path = "x86.rs"]
 mod platform;
 

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)