refactor: use std::sync::LazyLock to replace lazy_static

Note that this modification raises the Rust version requirement to 1.80+

Author: eatradish

Cargo.toml

@@ -22,7 +22,6 @@ include = [
 
 [target.'cfg(all(unix, not(target_os = "macos")))'.dependencies]
 dbus = { version = "0.9", optional = true }
-lazy_static = { version = "1.5", optional = true }
 image = { version = "0.25", optional = true }
 zbus = { version = "5", optional = true }
 serde = { version = "1", optional = true }
@@ -45,7 +44,7 @@ d_vendored = ["dbus/vendored"]
 z = ["zbus", "serde", "async"]
 async = []
 debug_namespace = []
-images = ["image", "lazy_static"]
+images = ["image"]
 
 [dev-dependencies]
 color-backtrace = "0.7" # wait for MSVR 1.70 to update

src/lib.rs

@@ -156,10 +156,6 @@ extern crate mac_notification_sys;
 #[cfg(target_os = "windows")]
 extern crate winrt_notification;
 
-#[macro_use]
-#[cfg(all(feature = "images", unix, not(target_os = "macos")))]
-extern crate lazy_static;
-
 pub mod error;
 mod hints;
 mod miniver;
@@ -212,13 +208,13 @@ pub use crate::urgency::Urgency;
 pub use crate::{notification::Notification, timeout::Timeout};
 
 #[cfg(all(feature = "images", unix, not(target_os = "macos")))]
-lazy_static! {
-    /// Read once at runtime. Needed for Images
-    pub static ref SPEC_VERSION: miniver::Version =
-        get_server_information()
+/// Read once at runtime. Needed for Images
+pub static SPEC_VERSION: std::sync::LazyLock<miniver::Version> = std::sync::LazyLock::new(|| {
+    get_server_information()
         .and_then(|info| info.spec_version.parse::<miniver::Version>())
-        .unwrap_or_else(|_| miniver::Version::new(1,1));
-}
+        .unwrap_or_else(|_| miniver::Version::new(1, 1))
+});
+
 /// Return value of `get_server_information()`.
 #[derive(Debug)]
 pub struct ServerInformation {