From 99f9f089ea3f44bb346b929855de18a5785aa903 Mon Sep 17 00:00:00 2001
From: Ximin Luo <infinity0@debian.org>
Date: Tue, 8 Sep 2020 17:38:19 +0100
Subject: [PATCH] Don't split dwarf debug for a fully-reproducible build

Bug: https://github.com/rust-lang/rust/issues/34902


Gbp-Pq: Name u-reproducible-build.patch
---
 src/librustc_llvm/build.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/librustc_llvm/build.rs b/src/librustc_llvm/build.rs
index c5d5f066f4..c15b3ba236 100644
--- a/src/librustc_llvm/build.rs
+++ b/src/librustc_llvm/build.rs
@@ -123,6 +123,11 @@ fn main() {
     let mut cfg = cc::Build::new();
     cfg.warnings(false);
     for flag in cxxflags.split_whitespace() {
+        // Split-dwarf gives unreproducible DW_AT_GNU_dwo_id so don't do it
+        if flag == "-gsplit-dwarf" {
+            continue;
+        }
+
         // Ignore flags like `-m64` when we're doing a cross build
         if is_crossed && flag.starts_with("-m") {
             continue;
-- 
2.30.2