From 5e97a3951d8a6c6fe0f0c5b6b0f42a42563a2bc8 Mon Sep 17 00:00:00 2001
From: bjorn3 <17426603+bjorn3@users.noreply.github.com>
Date: Mon, 28 Nov 2022 15:15:40 +0000
Subject: [PATCH] Make sure the target dir is always explicitly set when using
 cargo

---
 build_system/mod.rs | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/build_system/mod.rs b/build_system/mod.rs
index 531f42cf873..ef1109afe0a 100644
--- a/build_system/mod.rs
+++ b/build_system/mod.rs
@@ -48,8 +48,15 @@ pub(crate) enum SysrootKind {
 pub fn main() {
     env::set_var("CG_CLIF_DISPLAY_CG_TIME", "1");
     env::set_var("CG_CLIF_DISABLE_INCR_CACHE", "1");
-    // The target dir is expected in the default location. Guard against the user changing it.
-    env::set_var("CARGO_TARGET_DIR", "target");
+
+    {
+        // Make sure we always explicitly specify the target dir
+        let target = "build/target_dir_should_be_set_explicitly";
+        env::set_var("CARGO_TARGET_DIR", target);
+        std::fs::create_dir_all("build").unwrap();
+        let _ = std::fs::remove_file(target);
+        let file = std::fs::File::create(target).unwrap();
+    }
 
     if is_ci() {
         // Disabling incr comp reduces cache size and incr comp doesn't save as much on CI anyway