From b6e58c0fa4a6aae791b346400fb55e5896e24261 Mon Sep 17 00:00:00 2001
From: Michael Davis <mcarsondavis@gmail.com>
Date: Fri, 7 Mar 2025 09:36:51 -0500
Subject: [PATCH] flake: Split platform and common RUSTFLAGS in devShell

The `--no-rosegment` is not supported on macOS but the other flag
configurations can be used on both macOS and Linux.
---
 flake.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/flake.nix b/flake.nix
index b093ded5..0712b17e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -57,7 +57,8 @@
 
       # Devshell behavior is preserved.
       devShells.default = let
-        rustFlagsEnv = pkgs.lib.optionalString pkgs.stdenv.isLinux "-C link-arg=-fuse-ld=lld -C target-cpu=native -Clink-arg=-Wl,--no-rosegment --cfg tokio_unstable";
+        commonRustFlagsEnv = "-C link-arg=-fuse-ld=lld -C target-cpu=native --cfg tokio_unstable";
+        platformRustFlagsEnv = pkgs.lib.optionalString pkgs.stdenv.isLinux "-Clink-arg=-Wl,--no-rosegment";
       in
         pkgs.mkShell
         {
@@ -73,7 +74,7 @@
             ++ (lib.optional stdenv.isDarwin darwin.apple_sdk.frameworks.CoreFoundation);
           shellHook = ''
             export RUST_BACKTRACE="1"
-            export RUSTFLAGS="''${RUSTFLAGS:-""} ${rustFlagsEnv}"
+            export RUSTFLAGS="''${RUSTFLAGS:-""} ${commonRustFlagsEnv} ${platformRustFlagsEnv}"
           '';
         };
     })