From 8713102f77f26c68ad26fa8ae7be173fa750533d Mon Sep 17 00:00:00 2001
From: Roman Volosatovs <rvolosatovs@riseup.net>
Date: Wed, 19 Jul 2023 14:21:02 +0200
Subject: [PATCH] feat(rust): use mold linker for Linux targets

Signed-off-by: Roman Volosatovs <rvolosatovs@riseup.net>
---
 lib/rust/mkAttrs.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/rust/mkAttrs.nix b/lib/rust/mkAttrs.nix
index 1f8c535..4d8d9f6 100644
--- a/lib/rust/mkAttrs.nix
+++ b/lib/rust/mkAttrs.nix
@@ -296,6 +296,13 @@ with self.lib.rust.targets;
 
               CARGO_BUILD_TARGET = target;
             }
+            // optionalAttrs pkgsCross.stdenv.hostPlatform.isLinux {
+              nativeBuildInputs = [
+                final.mold
+              ];
+
+              RUSTFLAGS = "-Clink-arg=-fuse-ld=mold";
+            }
             // optionalAttrs (final.stdenv.buildPlatform.config != pkgsCross.stdenv.hostPlatform.config) (
               {
                 strictDeps = true;