Without this it is apparently impossible to mount file systems with the
feature, which apparently some distributions do by default now.
podiki[m]> I have an sdcard that was formatted with ext4 casefold
[by Arch Linux], cannot be mounted
* gnu/packages/aux-files/linux-libre/5.10-arm.conf,
gnu/packages/aux-files/linux-libre/5.10-arm64.conf,
gnu/packages/aux-files/linux-libre/5.10-i686.conf,
gnu/packages/aux-files/linux-libre/5.10-x86_64.conf,
gnu/packages/aux-files/linux-libre/5.15-arm.conf,
gnu/packages/aux-files/linux-libre/5.15-arm64.conf,
gnu/packages/aux-files/linux-libre/5.15-i686.conf,
gnu/packages/aux-files/linux-libre/5.15-x86_64.conf,
gnu/packages/aux-files/linux-libre/5.16-arm.conf,
gnu/packages/aux-files/linux-libre/5.16-arm64.conf,
gnu/packages/aux-files/linux-libre/5.16-i686.conf,
gnu/packages/aux-files/linux-libre/5.16-x86_64.conf,
gnu/packages/aux-files/linux-libre/5.4-arm.conf,
gnu/packages/aux-files/linux-libre/5.4-arm64.conf,
gnu/packages/aux-files/linux-libre/5.4-i686.conf,
gnu/packages/aux-files/linux-libre/5.4-x86_64.conf:
Set CONFIG_UNICODE=y.
Tobias Geerinckx-Rice
John Kehayias
Leo Famulari