From 3ad14a95a650f94b9fb4621b6c19d5ffd572cfc5 Mon Sep 17 00:00:00 2001
From: NotAShelf <raf@notashelf.dev>
Date: Sun, 30 Nov 2025 17:23:57 +0300
Subject: [PATCH] meta: build with Mold linker on x86_64 Linux

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Id51e62dda1ec2ba895ffdbbd25c2f1256a6a6964
---
 .cargo/config.toml |  4 ++++
 nix/shell.nix      | 12 ++++++++----
 2 files changed, 12 insertions(+), 4 deletions(-)
 create mode 100644 .cargo/config.toml

diff --git a/.cargo/config.toml b/.cargo/config.toml
new file mode 100644
index 0000000..b7efcee
--- /dev/null
+++ b/.cargo/config.toml
@@ -0,0 +1,4 @@
+# https://github.com/rui314/mold?tab=readme-ov-file#how-to-use
+[target.'cfg(target_os = "linux")']
+linker = "clang"
+rustflags = ["-C", "link-arg=-fuse-ld=mold"]
diff --git a/nix/shell.nix b/nix/shell.nix
index 111b803..ae65e10 100644
--- a/nix/shell.nix
+++ b/nix/shell.nix
@@ -1,27 +1,31 @@
 {
   mkShell,
+  cargo,
+  rustc,
+  mold,
+  clang,
   rust-analyzer-unwrapped,
   rustfmt,
   clippy,
-  cargo,
   taplo,
-  rustc,
   rustPlatform,
   gnuplot,
 }:
 mkShell {
+  name = "microfetch";
   strictDeps = true;
-
   nativeBuildInputs = [
     cargo
     rustc
+    mold
+    clang
 
     rust-analyzer-unwrapped
     (rustfmt.override {asNightly = true;})
     clippy
     taplo
 
-    gnuplot # For Criterion.rs plots
+    gnuplot # for Criterion.rs plots
   ];
 
   env.RUST_SRC_PATH = "${rustPlatform.rustLibSrc}";