From 756cd052e7da25fcfa26318c09e7e4a74ff4837c Mon Sep 17 00:00:00 2001
From: Brian Hicks <brian@brianthicks.com>
Date: Fri, 25 Feb 2022 14:24:11 -0600
Subject: [PATCH] tmux: add utf8proc on Darwin

Without utf8proc, tmux on Darwin does not get enough information about character
widths. This means that tmux has rendering issues involving multi-byte
characters like emoji, ending up with visual artifacts.
---
 pkgs/tools/misc/tmux/default.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/tools/misc/tmux/default.nix b/pkgs/tools/misc/tmux/default.nix
index 90273068f3e..0d153866419 100644
--- a/pkgs/tools/misc/tmux/default.nix
+++ b/pkgs/tools/misc/tmux/default.nix
@@ -6,6 +6,7 @@
 , bison
 , ncurses
 , libevent
+, utf8proc
 }:
 
 let
@@ -49,12 +50,12 @@ stdenv.mkDerivation rec {
   buildInputs = [
     ncurses
     libevent
-  ];
+  ] ++ lib.optionals stdenv.isDarwin [ utf8proc ];
 
   configureFlags = [
     "--sysconfdir=/etc"
     "--localstatedir=/var"
-  ];
+  ] ++ lib.optionals stdenv.isDarwin [ "--enable-utf8proc" ];
 
   enableParallelBuilding = true;