From faaf21bc668713a51a0867e7663adb6095806e0d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Asger=20Juul=20Brunsh=C3=B8j?= <asgerbrunshoj@gmail.com>
Date: Tue, 4 Jun 2024 10:23:43 +0200
Subject: [PATCH] in flake mkShell default RUSTFLAGS to an empty string if
 unset

---
 flake.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/flake.nix b/flake.nix
index e113d94b9975..db6c9a1f28d2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -116,7 +116,7 @@
         else pkgs.clangStdenv;
       rustFlagsEnv =
         if stdenv.isLinux
-        then ''$RUSTFLAGS -C link-arg=-fuse-ld=lld -C target-cpu=native -Clink-arg=-Wl,--no-rosegment''
+        then ''''${RUSTFLAGS:-""} -C link-arg=-fuse-ld=lld -C target-cpu=native -Clink-arg=-Wl,--no-rosegment''
         else "$RUSTFLAGS";
       rustToolchain = pkgs.pkgsBuildHost.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
       craneLibMSRV = (crane.mkLib pkgs).overrideToolchain rustToolchain;