Update gccjit.rs dependency version to 6.0.0

Cargo.lock

@@ -56,18 +56,18 @@ dependencies = [
 
 [[package]]
 name = "gccjit"
-version = "5.0.0"
+version = "6.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d4c19a75fd8c674bbcd459fc8235ff38f8e5219c07fc3b022556fd28d16c909"
+checksum = "5bb358d2563af5e32af92620915e6b05839ae60645343473735619441f45eb04"
 dependencies = [
  "gccjit_sys",
 ]
 
 [[package]]
 name = "gccjit_sys"
-version = "3.0.0"
+version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54c3a46c818a4b7d6c8d572ed0f3513a091dcf8e8dbafbb58381c6062eaef942"
+checksum = "2389fb01673e9cc63684d996a58079edccc5de89008274f3be59f1b16ac1f017"
 dependencies = [
  "libc",
 ]

Cargo.toml

@@ -20,7 +20,7 @@ default = ["master"]
 [dependencies]
 object = { version = "0.37.0", default-features = false, features = ["std", "read"] }
 tempfile = "3.20"
-gccjit = { version = "5.0.0", features = ["dlopen"] }
+gccjit = { version = "6.0.0", features = ["dlopen"] }
 #gccjit = { git = "https://github.com/rust-lang/gccjit.rs", branch = "error-dlopen", features = ["dlopen"] }
 
 # Local copy.

libgccjit.version

@@ -1 +1 @@
-3498409672c805d51b46faaa4a14f8682de8e1bf
+201ca90ac810d1c6509c252cc9c87d3ace0661d7

src/gcc_util.rs

@@ -1,3 +1,4 @@
+use std::borrow::Cow;
 use std::collections::HashSet;
 use std::env;
 
@@ -119,22 +120,22 @@ fn arch_to_gcc(name: &str) -> &str {
     }
 }
 
-fn handle_native(name: &str) -> &str {
+fn handle_native(name: &str) -> Cow<'_, str> {
     if name != NATIVE_CPU {
-        return arch_to_gcc(name);
+        return arch_to_gcc(name).into();
     }
 
     #[cfg(feature = "master")]
     {
         // Get the native arch.
         let context = Context::default();
-        context.get_target_info().arch().unwrap().to_str().unwrap()
+        Cow::Owned(context.get_target_info().arch().to_str().unwrap().to_string())
     }
     #[cfg(not(feature = "master"))]
     unimplemented!();
 }
 
-pub fn target_cpu(sess: &Session) -> &str {
+pub fn target_cpu(sess: &Session) -> Cow<'_, str> {
     match sess.opts.cg.target_cpu {
         Some(ref name) => handle_native(name),
         None => handle_native(sess.target.cpu.as_ref()),

src/lib.rs

@@ -288,7 +288,7 @@ impl CodegenBackend for GccCodegenBackend {
     }
 
     fn target_cpu(&self, sess: &Session) -> String {
-        target_cpu(sess).to_owned()
+        target_cpu(sess).into_owned()
     }
 
     fn codegen_crate(&self, tcx: TyCtxt<'_>) -> Box<dyn Any> {