From c0407c30ca849f2a28385be4066c28e3677e8f08 Mon Sep 17 00:00:00 2001
From: Weijia Wang <9713184+wegank@users.noreply.github.com>
Date: Sun, 22 Jan 2023 09:14:34 +0100
Subject: [PATCH 1/2] mtxclient: fix build on aarch64-linux

---
 pkgs/development/libraries/mtxclient/default.nix | 3 +++
 pkgs/top-level/all-packages.nix                  | 5 ++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/mtxclient/default.nix b/pkgs/development/libraries/mtxclient/default.nix
index 505e58c1ec37..a3b829a754a8 100644
--- a/pkgs/development/libraries/mtxclient/default.nix
+++ b/pkgs/development/libraries/mtxclient/default.nix
@@ -53,6 +53,9 @@ stdenv.mkDerivation rec {
     spdlog
   ];
 
+  # https://github.com/NixOS/nixpkgs/issues/201254
+  NIX_LDFLAGS = lib.optionalString (stdenv.isLinux && stdenv.isAarch64 && stdenv.cc.isGNU) "-lgcc";
+
   meta = with lib; {
     description = "Client API library for the Matrix protocol.";
     homepage = "https://github.com/Nheko-Reborn/mtxclient";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 02a7df000c48..dc6083d5c9c0 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -22021,7 +22021,10 @@ with pkgs;
 
   mtpfs = callPackage ../tools/filesystems/mtpfs { };
 
-  mtxclient = callPackage ../development/libraries/mtxclient { };
+  mtxclient = callPackage ../development/libraries/mtxclient {
+    # https://github.com/NixOS/nixpkgs/issues/201254
+    stdenv = if stdenv.isLinux && stdenv.isAarch64 && stdenv.cc.isGNU then gcc11Stdenv else stdenv;
+  };
 
   mu = callPackage ../tools/networking/mu {
     texinfo = texinfo4;

From a10858477fb9a384ad8aba8f2ade7488f92f4eeb Mon Sep 17 00:00:00 2001
From: Weijia Wang <9713184+wegank@users.noreply.github.com>
Date: Sun, 22 Jan 2023 09:14:42 +0100
Subject: [PATCH 2/2] nheko: fix build on aarch64-linux

---
 .../networking/instant-messengers/nheko/default.nix       | 8 ++++++--
 pkgs/top-level/all-packages.nix                           | 5 ++++-
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/pkgs/applications/networking/instant-messengers/nheko/default.nix b/pkgs/applications/networking/instant-messengers/nheko/default.nix
index 680833ca2e6a..e6b3d84c7b79 100644
--- a/pkgs/applications/networking/instant-messengers/nheko/default.nix
+++ b/pkgs/applications/networking/instant-messengers/nheko/default.nix
@@ -1,6 +1,5 @@
 { lib
 , stdenv
-, mkDerivation
 , fetchFromGitHub
 , cmake
 , asciidoc
@@ -26,12 +25,13 @@
 , qttools
 , re2
 , spdlog
+, wrapQtAppsHook
 , voipSupport ? true
 , gst_all_1
 , libnice
 }:
 
-mkDerivation rec {
+stdenv.mkDerivation rec {
   pname = "nheko";
   version = "0.11.1";
 
@@ -47,6 +47,7 @@ mkDerivation rec {
     cmake
     lmdbxx
     pkg-config
+    wrapQtAppsHook
   ];
 
   buildInputs = [
@@ -82,6 +83,9 @@ mkDerivation rec {
     "-DCOMPILE_QML=ON" # see https://github.com/Nheko-Reborn/nheko/issues/389
   ];
 
+  # https://github.com/NixOS/nixpkgs/issues/201254
+  NIX_LDFLAGS = lib.optionalString (stdenv.isLinux && stdenv.isAarch64 && stdenv.cc.isGNU) "-lgcc";
+
   preFixup = lib.optionalString voipSupport ''
     # add gstreamer plugins path to the wrapper
     qtWrapperArgs+=(--prefix GST_PLUGIN_SYSTEM_PATH_1_0 : "$GST_PLUGIN_SYSTEM_PATH_1_0")
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index dc6083d5c9c0..454c8d096ea4 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -31546,7 +31546,10 @@ with pkgs;
 
   ngt = callPackage ../development/libraries/ngt { };
 
-  nheko = libsForQt5.callPackage ../applications/networking/instant-messengers/nheko { };
+  nheko = libsForQt5.callPackage ../applications/networking/instant-messengers/nheko {
+    # https://github.com/NixOS/nixpkgs/issues/201254
+    stdenv = if stdenv.isLinux && stdenv.isAarch64 && stdenv.cc.isGNU then gcc11Stdenv else stdenv;
+  };
 
   nomacs = libsForQt5.callPackage ../applications/graphics/nomacs { };