From 079b7a006c021a2a378400fe286d1a49830bca46 Mon Sep 17 00:00:00 2001
From: John Titor <50095635+JohnRTitor@users.noreply.github.com>
Date: Thu, 28 Aug 2025 12:09:01 +0530
Subject: [PATCH] scx.rustscheds: restore RUSTFLAGS

Per https://github.com/sched-ext/scx/blob/059ce35c31c5d7906d2886b0e1c235ef5b6f6da4/meson.build#L347-L349
but linking libbpf is not required, built in rust one should work fine.

See https://github.com/NixOS/nixpkgs/pull/437169/commits/8ec509cc139a8d5e665690fac7794ee277233f4a#r2302122465 and https://github.com/sched-ext/scx/pull/2592
---
 pkgs/os-specific/linux/scx/scx_rustscheds.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/os-specific/linux/scx/scx_rustscheds.nix b/pkgs/os-specific/linux/scx/scx_rustscheds.nix
index edbdcfef4795..c43bfee59861 100644
--- a/pkgs/os-specific/linux/scx/scx_rustscheds.nix
+++ b/pkgs/os-specific/linux/scx/scx_rustscheds.nix
@@ -30,6 +30,12 @@ rustPlatform.buildRustPackage {
 
   env = {
     BPF_CLANG = lib.getExe llvmPackages.clang;
+    RUSTFLAGS = lib.concatStringsSep " " [
+      "-C relocation-model=pic"
+      "-C link-args=-lelf"
+      "-C link-args=-lz"
+      "-C link-args=-lzstd"
+    ];
   };
 
   hardeningDisable = [