From 6486868c2849b64dceebf9ea0048863ee1b7f823 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Janne=20He=C3=9F?= <janne@hess.ooo>
Date: Tue, 9 Apr 2024 22:35:36 +0200
Subject: [PATCH] cargoBuildHook: Fix features with __structuredAttrs

---
 pkgs/build-support/rust/hooks/cargo-build-hook.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/pkgs/build-support/rust/hooks/cargo-build-hook.sh b/pkgs/build-support/rust/hooks/cargo-build-hook.sh
index ed982c7ff30a..0ac9bf51a833 100644
--- a/pkgs/build-support/rust/hooks/cargo-build-hook.sh
+++ b/pkgs/build-support/rust/hooks/cargo-build-hook.sh
@@ -25,7 +25,14 @@ cargoBuildHook() {
     fi
 
     if [ -n "${cargoBuildFeatures-}" ]; then
-        cargoBuildFeaturesFlag="--features=${cargoBuildFeatures// /,}"
+        if [ -n "$__structuredAttrs" ]; then
+            OLDIFS="$IFS"
+            IFS=','; cargoBuildFeaturesFlag="--features=${cargoBuildFeatures[*]}"
+            IFS="$OLDIFS"
+            unset OLDIFS
+        else
+            cargoBuildFeaturesFlag="--features=${cargoBuildFeatures// /,}"
+        fi
     fi
 
     (