--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/corrosion/test/rustflags/rustflags/rust/src/lib.rs	Wed Aug 28 15:31:51 2024 +0200
@@ -0,0 +1,40 @@
+#[cfg(test_rustflag_cfg1 = "test_rustflag_cfg1_value")]
+use std::os::raw::c_char;
+
+#[no_mangle]
+#[cfg(test_rustflag_cfg1 = "test_rustflag_cfg1_value")]
+pub extern "C" fn rust_function(name: *const c_char) {
+    let name = unsafe { std::ffi::CStr::from_ptr(name).to_str().unwrap() };
+    println!("Hello, {}! I'm Rust!", name);
+}
+
+#[no_mangle]
+#[cfg(all(debug_assertions, test_rustflag_cfg2 = "debug"))]
+pub extern "C" fn rust_second_function(name: *const c_char) {
+    let name = unsafe { std::ffi::CStr::from_ptr(name).to_str().unwrap() };
+    println!("Hello, {}! I'm Rust in Debug mode again!", name);
+}
+
+#[no_mangle]
+#[cfg(all(not(debug_assertions), test_rustflag_cfg2 = "release"))]
+pub extern "C" fn rust_second_function(name: *const c_char) {
+    let name = unsafe { std::ffi::CStr::from_ptr(name).to_str().unwrap() };
+    println!("Hello, {}! I'm Rust in Release mode again!", name);
+}
+
+#[no_mangle]
+#[cfg(test_rustflag_cfg3)]
+pub extern "C" fn rust_third_function(name: *const c_char) {
+    let name = unsafe { std::ffi::CStr::from_ptr(name).to_str().unwrap() };
+    println!("Hello, {}! I'm Rust again, third time the charm!", name);
+    assert_eq!(some_dependency::some_function(), 42);
+}
+
+#[cfg(not(test_rustflag_cfg3))]
+const _: [(); 1] = [(); 2];
+
+#[cfg(not(test_local_rustflag1))]
+const _: [(); 1] = [(); 2];
+
+#[cfg(not(test_local_rustflag2 = "value"))]
+const _: [(); 1] = [(); 2];