From 412c72d20f067dfb45aaa041c2333fbdc82dca6d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dani=C3=ABl=20de=20Kok?= <me@danieldk.eu>
Date: Fri, 13 Mar 2020 11:21:07 +0100
Subject: [PATCH] buildRustCrate: sort linker options in-place

---
 .../rust/build-rust-crate/configure-crate.nix            | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/pkgs/build-support/rust/build-rust-crate/configure-crate.nix b/pkgs/build-support/rust/build-rust-crate/configure-crate.nix
index 2f7d3b77f397..61c39c6b21c0 100644
--- a/pkgs/build-support/rust/build-rust-crate/configure-crate.nix
+++ b/pkgs/build-support/rust/build-rust-crate/configure-crate.nix
@@ -102,19 +102,16 @@ in ''
 
   # Remove duplicate linker flags from the build dependencies.
   if [[ -e target/link.build ]]; then
-    sort -u target/link.build > target/link.build.sorted
-    mv target/link.build.sorted target/link.build
+    sort -uo target/link.build target/link.build
   fi
 
   # Remove duplicate linker flags from the dependencies.
-  sort -u target/link > target/link.sorted
-  mv target/link.sorted target/link
+  sort -uo target/link target/link
   tr '\n' ' ' < target/link > target/link_
 
   # Remove duplicate linker flags from the that are written
   # to the derivation's output.
-  sort -u target/link.final > target/link.final.sorted
-  mv target/link.final.sorted target/link.final
+  sort -uo target/link.final target/link.final
 
   EXTRA_BUILD=""
   BUILD_OUT_DIR=""