--- rust-cbindgen-0.26.0.orig/tests/tests.rs
+++ rust-cbindgen-0.26.0/tests/tests.rs
@@ -204,6 +204,9 @@ fn run_compile_test(
     let crate_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
     let tests_path = Path::new(&crate_dir).join("tests");
     let mut generated_file = tests_path.join("expectations");
+    if let Some(cargo_target_tmpdir) = option_env!("CARGO_TARGET_TMPDIR") {
+        generated_file = Path::new(cargo_target_tmpdir).join("expectations");
+    }
     fs::create_dir_all(&generated_file).unwrap();
 
     let style_ext = style