From a7ab107f02f8ca1fd100afe39ba0be0e2e6fe5fd Mon Sep 17 00:00:00 2001
From: Alois Wohlschlager <alois1@gmx-topmail.de>
Date: Sun, 18 Feb 2024 18:46:03 +0100
Subject: [PATCH] tmux: add proposed upstream fix for split-window regression

In tmux 3.4, a regression was introduced that breaks the deprecated (but still
supported for backwards compatibility) -p option to split-window. Several
external tools (for example fzf.kak, fzf-tmux and nnn) break due to this. Add
the proposed upstream fix from https://github.com/tmux/tmux/pull/3840.
---
 pkgs/tools/misc/tmux/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/tools/misc/tmux/default.nix b/pkgs/tools/misc/tmux/default.nix
index a39f65d702ac..913310ec7a47 100644
--- a/pkgs/tools/misc/tmux/default.nix
+++ b/pkgs/tools/misc/tmux/default.nix
@@ -1,6 +1,7 @@
 { lib
 , stdenv
 , fetchFromGitHub
+, fetchpatch
 , autoreconfHook
 , bison
 , libevent
@@ -37,6 +38,11 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-RX3RZ0Mcyda7C7im1r4QgUxTnp95nfpGgQ2HRxr0s64=";
   };
 
+  patches = [(fetchpatch {
+    url = "https://github.com/tmux/tmux/commit/2d1afa0e62a24aa7c53ce4fb6f1e35e29d01a904.diff";
+    hash = "sha256-mDt5wy570qrUc0clGa3GhZFTKgL0sfnQcWJEJBKAbKs=";
+  })];
+
   nativeBuildInputs = [
     pkg-config
     autoreconfHook