Suppress the deprecation warning from bindgen and bump versions

meson.build

@@ -1,5 +1,5 @@
 project('sched_ext schedulers', 'c',
-        version: '0.1.3',
+        version: '0.1.4',
         license: 'GPL-2.0')
 
 if meson.version().version_compare('<1.2')

rust/scx_utils/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "scx_utils"
-version = "0.4.0"
+version = "0.4.1"
 edition = "2021"
 authors = ["Tejun Heo <[email protected]>"]
 license = "GPL-2.0-only"
@@ -9,6 +9,8 @@ description = "Utilities for sched_ext schedulers"
 
 [dependencies]
 anyhow = "1.0"
+# FIXME - We need to allow both 0.68 and 0.69 to accommodate fedora. See the
+# comment in BpfBuilder::bindgen_bpf_intf() for details.
 bindgen = ">=0.68, <0.70"
 glob = "0.3"
 lazy_static = "1.4"

rust/scx_utils/src/bpf_builder.rs

@@ -493,6 +493,14 @@ impl BpfBuilder {
         // Tell cargo to invalidate the built crate whenever the wrapper changes
         deps.insert(input.to_string());
 
+	// FIXME - bindgen's API changed between 0.68 and 0.69 so that
+	// `bindgen::CargoCallbacks::new()` should be used instead of
+	// `bindgen::CargoCallbacks`. Unfortunately, as of Dec 2023, fedora
+	// is shipping 0.68. To accommodate fedora, allow both 0.68 and 0.69
+	// of bindgen and suppress deprecation warning. Remove the following
+	// once fedora can be updated to bindgen >= 0.69.
+	#[allow(deprecated)]
+
         // The bindgen::Builder is the main entry point to bindgen, and lets
         // you build up options for the resulting bindings.
         let bindings = bindgen::Builder::default()