Exclude development scripts from published package

Cargo.toml

@@ -9,7 +9,7 @@ description = "Automatic cfg for Rust compiler features"
 readme = "README.md"
 keywords = ["rustc", "build", "autoconf"]
 categories = ["development-tools::build-utils"]
-exclude = ["/.github/**"]
 rust-version = "1.0"
+include = ["Cargo.toml", "LICENSE-APACHE", "LICENSE-MIT", "README.md", "src/**/*.rs", "tests/**/*.rs"]
 
 [dependencies]

tests/support/wrap_ignored.rs

@@ -0,0 +1,7 @@
+fn main() {
+    let mut args = std::env::args();
+    // Add our own version so we can check that the wrapper is used for that.
+    if args.any(|f| f == "--version") {
+        println!("release: 12345.6789.0");
+    }
+}

tests/wrappers.rs

@@ -17,6 +17,8 @@ fn test_wrappers() {
         }
     }
 
+    let original_rustc = std::env::var("RUSTC").unwrap_or_else(|_| String::from("rustc"));
+
     let out = support::out_dir();
 
     // This is used as a heuristic to detect rust-lang/cargo#9601.
@@ -44,9 +46,20 @@ fn test_wrappers() {
         }
     }
 
+    // compile the wrap_ignored wrapper
+    let wrapper_output_path = format!("{}/wrap_ignored", out.display());
+    let res = std::process::Command::new(original_rustc)
+        .arg("./tests/support/wrap_ignored.rs")
+        .arg("-o")
+        .arg(&wrapper_output_path)
+        .status()
+        .unwrap();
+    assert!(res.success(), "Failed to compile wrapper");
+    println!("{wrapper_output_path}");
+
     // Finally, make sure that `RUSTC_WRAPPER` is applied outermost
     // by using something that doesn't pass through at all.
-    env::set_var("RUSTC_WRAPPER", "./tests/wrap_ignored");
+    env::set_var("RUSTC_WRAPPER", wrapper_output_path);
     env::set_var("RUSTC_WORKSPACE_WRAPPER", "/bin/false");
     let ac = autocfg::AutoCfg::with_dir(out.as_ref()).unwrap();
     assert!(ac.probe_type("mesize")); // anything goes!