linux-kernel - Re: [PATCH v2] rust: add PROCMACROLDFLAGS

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Message-ID: <CAH5fLgjv1AcSspv=-owxrsKaJcAGpxdG3g6r10imcOR1Yarr6Q@mail.gmail.com>
Date: Fri, 18 Oct 2024 10:38:19 +0200
From: Alice Ryhl <aliceryhl@...gle.com>
To: HONG Yifan <elsk@...gle.com>
Cc: Masahiro Yamada <masahiroy@...nel.org>, Nathan Chancellor <nathan@...nel.org>, 
	Nicolas Schier <nicolas@...sle.eu>, Jonathan Corbet <corbet@....net>, Miguel Ojeda <ojeda@...nel.org>, 
	Alex Gaynor <alex.gaynor@...il.com>, Boqun Feng <boqun.feng@...il.com>, 
	Gary Guo <gary@...yguo.net>, Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Benno Lossin <benno.lossin@...ton.me>, Andreas Hindborg <a.hindborg@...nel.org>, kernel-team@...roid.com, 
	linux-doc@...r.kernel.org, linux-kbuild@...r.kernel.org, 
	linux-kernel@...r.kernel.org, mmaurer@...gle.com, 
	rust-for-linux@...r.kernel.org
Subject: Re: [PATCH v2] rust: add PROCMACROLDFLAGS

On Thu, Oct 17, 2024 at 11:05 PM HONG Yifan <elsk@...gle.com> wrote:
>
> These are additional flags to be passed when linking proc macros for the
> Rust toolchain. If unset, it defaults to $(HOSTLDFLAGS).
>
> This is needed because the list of flags to link hostprogs is not
> necessarily the same as the list of flags used to link libmacros.so.
> When we build proc macros, we need the latter, not the
> former. To distinguish between the two, introduce this new variable
> to stand out from HOSTLDFLAGS used to link other host progs.
>
> Signed-off-by: HONG Yifan <elsk@...gle.com>

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>