From 80cd61dd415c30e42f881b9eb35ba9b875f89daa Mon Sep 17 00:00:00 2001
From: Alois Wohlschlager <alois1@gmx-topmail.de>
Date: Fri, 10 Mar 2023 14:45:21 +0100
Subject: [PATCH] hotspot: Fix Rust demangling support

Hotspot supports demangling Rust symbols using rustc-demangle. This
library is loaded at run-time since version 1.4.0. Tell the wrapper to
make it available, so that the demangling actually works.
---
 pkgs/development/tools/analysis/hotspot/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/tools/analysis/hotspot/default.nix b/pkgs/development/tools/analysis/hotspot/default.nix
index 5c0a96e5d8e0..bbf91ec28fb4 100644
--- a/pkgs/development/tools/analysis/hotspot/default.nix
+++ b/pkgs/development/tools/analysis/hotspot/default.nix
@@ -62,6 +62,10 @@ mkDerivation rec {
     mkdir -p 3rdparty/{perfparser,PrefixTickLabels}/.git
   '';
 
+  qtWrapperArgs = [
+    "--prefix LD_LIBRARY_PATH : ${lib.makeLibraryPath [ rustc-demangle ]}"
+  ];
+
   meta = with lib; {
     description = "A GUI for Linux perf";
     longDescription = ''