From 3ad4b05a97642810b3975c03d6adff14b331146c Mon Sep 17 00:00:00 2001
From: =?utf8?q?Bennet=20Ble=C3=9Fmann?= <bb-github@t-online.de>
Date: Thu, 25 Jul 2024 23:09:17 +0200
Subject: [PATCH] add a features for gating things we can use once 1.80 is msrv

---
 Cargo.toml         |  1 +
 src/machine/mod.rs | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/Cargo.toml b/Cargo.toml
index 67c3e60d..180015ed 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,6 +23,7 @@ hostname = ["dep:hostname"]
 tls = ["dep:native-tls"]
 http = ["dep:warp", "dep:reqwest"]
 crypto-full = []
+"rust-version-1.80" = []
 
 [build-dependencies]
 indexmap = "1.0.2"
diff --git a/src/machine/mod.rs b/src/machine/mod.rs
index 1726ae5b..9110ae9c 100644
--- a/src/machine/mod.rs
+++ b/src/machine/mod.rs
@@ -118,6 +118,7 @@ fn current_dir() -> PathBuf {
     }
 }
 
+#[cfg(not(feature = "rust-version-1.80"))]
 mod libraries {
     use indexmap::IndexMap;
     use std::sync::OnceLock;
@@ -142,6 +143,28 @@ mod libraries {
     }
 }
 
+#[cfg(feature = "rust-version-1.80")]
+mod libraries {
+    use indexmap::IndexMap;
+    use std::sync::LazyLock;
+
+    static LIBRARIES: LazyLock<IndexMap<&'static str, &'static str>> = OnceLock::new(|| {
+        let mut m = IndexMap::new();
+
+        include!(concat!(env!("OUT_DIR"), "/libraries.rs"));
+
+        m
+    });
+
+    pub(crate) fn contains(name: &str) -> bool {
+        LIBRARIES.contains_key(name)
+    }
+
+    pub(crate) fn get(name: &str) -> Option<&'static str> {
+        LIBRARIES.get(name).copied()
+    }
+}
+
 pub static BREAK_FROM_DISPATCH_LOOP_LOC: usize = 0;
 pub static INSTALL_VERIFY_ATTR_INTERRUPT: usize = 1;
 pub static VERIFY_ATTR_INTERRUPT_LOC: usize = 2;
-- 
2.54.0