From 58466b9b5d34117d26ab82cd01ba95ac6de74558 Mon Sep 17 00:00:00 2001 From: Debian Rust Maintainers Date: Sun, 5 Jan 2020 13:35:46 +0000 Subject: [PATCH] u-reproducible-compiler-builtins Gbp-Pq: Name u-reproducible-compiler-builtins.patch --- vendor/compiler_builtins/build.rs | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/vendor/compiler_builtins/build.rs b/vendor/compiler_builtins/build.rs index c714bc15de..490b6391d0 100644 --- a/vendor/compiler_builtins/build.rs +++ b/vendor/compiler_builtins/build.rs @@ -423,6 +423,11 @@ mod c { panic!("RUST_COMPILER_RT_ROOT={} does not exist", root.display()); } + // Support deterministic builds by remapping the __FILE__ prefix if the + // compiler supports it. This fixes the nondeterminism caused by the + // use of that macro in lib/builtins/int_util.h in compiler-rt. + cfg.flag_if_supported(&format!("-ffile-prefix-map={}=.", root.display())); + let src_dir = root.join("lib/builtins"); for (sym, src) in sources.map.iter() { let src = src_dir.join(src); -- 2.30.2