From 662e3b88aede51891f181226b021831b26948d88 Mon Sep 17 00:00:00 2001
From: Varris <varris@posteo.net>
Date: Fri, 29 Jan 2021 13:38:41 +0100
Subject: [PATCH] linux: Enable CONFIG_UNICODE to support casefold

Required to mount filesystems with casefold enabled. Fixes #109432
---
 pkgs/os-specific/linux/kernel/common-config.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index 24c992dc907..0d93dd485a4 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -416,6 +416,8 @@ let
       NLS_ISO8859_1    = module; # VFAT default for the iocharset= mount option
 
       DEVTMPFS = yes;
+
+      UNICODE = whenAtLeast "5.2" yes; # Casefolding support for filesystems
     };
 
     security = {