From 3ab02afdafb2a8ff5911ccc30fcc4b4c5b64b204 Mon Sep 17 00:00:00 2001
From: zjp <jiping_zhou@foxmail.com>
Date: Sat, 16 Mar 2024 15:04:25 +0800
Subject: [PATCH] fix: cfg nighyly for integration test for cargo-dist to work
 on stable

---
 tests/integration/build.rs   | 8 ++++++++
 tests/integration/src/lib.rs | 4 +++-
 2 files changed, 11 insertions(+), 1 deletion(-)
 create mode 100644 tests/integration/build.rs

diff --git a/tests/integration/build.rs b/tests/integration/build.rs
new file mode 100644
index 0000000..a092445
--- /dev/null
+++ b/tests/integration/build.rs
@@ -0,0 +1,8 @@
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let output = std::process::Command::new("rustc").arg("-V").output()?;
+    // set nightly cfg if current toolchain is nightly
+    if std::str::from_utf8(&output.stdout)?.contains("nightly") {
+        println!("cargo:rustc-cfg=nightly");
+    }
+    Ok(())
+}
diff --git a/tests/integration/src/lib.rs b/tests/integration/src/lib.rs
index 36fe616..fab0305 100644
--- a/tests/integration/src/lib.rs
+++ b/tests/integration/src/lib.rs
@@ -1,4 +1,4 @@
-#![feature(c_variadic)]
+#![cfg_attr(nightly, feature(c_variadic))]
 /// Documentation for struct AUnitStruct.
 pub struct AUnitStruct;
 
@@ -108,8 +108,10 @@ where
 {
 }
 /// # Safety
+#[cfg(nightly)]
 pub unsafe extern "C" fn variadic(_: *const (), _name: ...) {}
 /// # Safety
+#[cfg(nightly)]
 pub unsafe extern "C" fn variadic_multiline(_: *const (), _: *mut (), _name: ...) {}
 
 pub trait ATraitWithGAT {