Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/proc-macro-srv-cli/tests/legacy_json.rs')
-rw-r--r--crates/proc-macro-srv-cli/tests/legacy_json.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/crates/proc-macro-srv-cli/tests/legacy_json.rs b/crates/proc-macro-srv-cli/tests/legacy_json.rs
index c0dbfd1679..562cf0c251 100644
--- a/crates/proc-macro-srv-cli/tests/legacy_json.rs
+++ b/crates/proc-macro-srv-cli/tests/legacy_json.rs
@@ -4,6 +4,10 @@
//! channels without needing to spawn the actual server and client processes.
#![cfg(feature = "sysroot-abi")]
+#![cfg_attr(feature = "in-rust-tree", feature(rustc_private))]
+
+#[cfg(feature = "in-rust-tree")]
+extern crate rustc_driver as _;
mod common {
pub(crate) mod utils;