From 13b0ee0d8556544a5232aac109acf0e7db02b442 Mon Sep 17 00:00:00 2001
From: Ximin Luo <infinity0@debian.org>
Date: Sat, 7 Nov 2020 21:21:03 +0000
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 25c0b40c49..5ef3afac46 100644
--- a/src/librustc_llvm/build.rs
+++ b/src/librustc_llvm/build.rs
@@ -137,6 +137,11 @@ 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