1 files changed, 27 insertions, 0 deletions
diff --git a/compiler/rustc/build.rs b/compiler/rustc/build.rs
new file mode 100644
index 000000000..39cf3e094
--- /dev/null
+++ b/compiler/rustc/build.rs
@@ -0,0 +1,27 @@
+use std::env;
+
+fn main() {
+    let target_os = env::var("CARGO_CFG_TARGET_OS");
+    let target_env = env::var("CARGO_CFG_TARGET_ENV");
+    if Ok("windows") == target_os.as_deref() && Ok("msvc") == target_env.as_deref() {
+        set_windows_exe_options();
+    } else {
+        // Avoid rerunning the build script every time.
+        println!("cargo:rerun-if-changed=build.rs");
+    }
+}
+
+// Add a manifest file to rustc.exe.
+fn set_windows_exe_options() {
+    static WINDOWS_MANIFEST_FILE: &str = "Windows Manifest.xml";
+
+    let mut manifest = env::current_dir().unwrap();
+    manifest.push(WINDOWS_MANIFEST_FILE);
+
+    println!("cargo:rerun-if-changed={}", WINDOWS_MANIFEST_FILE);
+    // Embed the Windows application manifest file.
+    println!("cargo:rustc-link-arg-bin=rustc-main=/MANIFEST:EMBED");
+    println!("cargo:rustc-link-arg-bin=rustc-main=/MANIFESTINPUT:{}", manifest.to_str().unwrap());
+    // Turn linker warnings into errors.
+    println!("cargo:rustc-link-arg-bin=rustc-main=/WX");
+}