From 7ede8e2a5912778ce01b6a520c954c4e105126e6 Mon Sep 17 00:00:00 2001
From: bjorn3 <17426603+bjorn3@users.noreply.github.com>
Date: Sat, 4 Nov 2023 16:06:23 +0000
Subject: [PATCH] Ensure macro expansion runs before writing the dep info

---
 compiler/rustc_interface/src/passes.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs
index d1270427967..6af97910b49 100644
--- a/compiler/rustc_interface/src/passes.rs
+++ b/compiler/rustc_interface/src/passes.rs
@@ -554,6 +554,11 @@ fn resolver_for_lowering<'tcx>(
 }
 
 fn write_dep_info(tcx: TyCtxt<'_>, (): ()) {
+    // Make sure name resolution and macro expansion is run for
+    // the side-effect of providing a complete set of all
+    // accessed files and env vars.
+    let _ = tcx.resolver_for_lowering(());
+
     let sess = tcx.sess;
     let _timer = sess.timer("write_dep_info");
     let crate_name = tcx.crate_name(LOCAL_CRATE);