Hi,

Zhu Zihao <all_but_last@163.com> skribis:

>>From 41b6beb2ee5770f791984fb7411a69ba77544681 Mon Sep 17 00:00:00 2001
> From: Zhu Zihao <all_but_last@163.com>
> Date: Fri, 7 Oct 2022 11:14:26 +0800
> Subject: [PATCH 1/2] gnu: libcxx: Use G-expressions.
>
> * gnu/packages/llvm.scm (libcxx)[arguments]: Use G-expressions.
> (libcxx-6)[arguments]: Use G-expressions.

[...]

>>From b70e093e1ce01de0f607d70911e1539462c17a40 Mon Sep 17 00:00:00 2001
> From: Zhu Zihao <all_but_last@163.com>
> Date: Sat, 8 Oct 2022 16:26:44 +0800
> Subject: [PATCH 2/2] gnu: libcxx: Update to 14.0.6.
>
> * gnu/packages/llvm.scm(libcxx)[source]: Use "llvm-monorepo".
> [arguments]<#:configure-flags>: Use clang & clang++, skip RPATH_CHANGE in CMake.
> <#:phases>: Add phase "enter-subdirectory".
> [native-inputs]: Add Python 3 for lit.
>
> (libcxx-6)[arguments]: Don't inherit from libcxx.

I tried it and noticed a first issue: