From c0c0f4a100b398fa852b8f5bf8202fb3a599866c Mon Sep 17 00:00:00 2001
From: Francis Chua <francischua689@gmail.com>
Date: Sun, 6 Aug 2023 08:50:31 -0700
Subject: [PATCH] Add warnings for prebuilt llvm-config to build.rs

---
 crates/rustc_codegen_nvvm/build.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/crates/rustc_codegen_nvvm/build.rs b/crates/rustc_codegen_nvvm/build.rs
index e5ed44f9..dfb85985 100644
--- a/crates/rustc_codegen_nvvm/build.rs
+++ b/crates/rustc_codegen_nvvm/build.rs
@@ -75,6 +75,9 @@ fn find_llvm_config(target: &str) -> PathBuf {
             if version.starts_with(&REQUIRED_MAJOR_LLVM_VERSION.to_string()) {
                 return PathBuf::from(path_to_try);
             }
+            println!("cargo:warning=Prebuilt llvm-config version does not start with {}", REQUIRED_MAJOR_LLVM_VERSION);
+        } else {
+            println!("cargo:warning=Failed to run prebuilt llvm-config");
         }
     }