From 5e452ba616ab416e1444882ffe52648ae1fbac09 Mon Sep 17 00:00:00 2001
From: bjorn3 <17426603+bjorn3@users.noreply.github.com>
Date: Sat, 14 Jan 2023 12:41:07 +0000
Subject: [PATCH] Set RUSTC and RUSTDOC env vars to invalid values to catch
 forgetting to set them

---
 build_system/mod.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/build_system/mod.rs b/build_system/mod.rs
index f0cde968ae7b..265416c48fcc 100644
--- a/build_system/mod.rs
+++ b/build_system/mod.rs
@@ -134,6 +134,9 @@ pub fn main() {
         process::exit(0);
     }
 
+    env::set_var("RUSTC", "rustc_should_be_set_explicitly");
+    env::set_var("RUSTDOC", "rustdoc_should_be_set_explicitly");
+
     let cg_clif_dylib =
         build_backend::build_backend(&dirs, channel, &host_compiler, use_unstable_features);
     match command {