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Date: Wed, 24 May 2023 09:32:33 -0400
From: Rich Felker <dalias@libc.org>
To: Jens Gustedt <Jens.Gustedt@inria.fr>
Cc: musl@lists.openwall.com
Message-ID: <20230524133233.GT4163@brightrain.aerifal.cx>
References: <cover.1684922612.git.Jens.Gustedt@inria.fr>
 <1c2e4eb5294288921677b2b661b77ef38a6cdbd0.1684922612.git.Jens.Gustedt@inria.fr>
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In-Reply-To: <1c2e4eb5294288921677b2b661b77ef38a6cdbd0.1684922612.git.Jens.Gustedt@inria.fr>
User-Agent: Mutt/1.5.21 (2010-09-15)
Subject: Re: [musl] [C23 implied 2/2] clang: only exclude C library includes,
 but allow compiler specific headers

On Mon, Apr 17, 2023 at 09:30:53PM +0200, Jens Gustedt wrote:
> ---
>  tools/musl-clang.in | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/musl-clang.in b/tools/musl-clang.in
> index 623de6f6..00189322 100644
> --- a/tools/musl-clang.in
> +++ b/tools/musl-clang.in
> @@ -24,7 +24,7 @@ exec $cc \
>      -B"$thisdir" \
>      -fuse-ld=musl-clang \
>      -static-libgcc \
> -    -nostdinc \
> +    -nostdlibinc \
>      --sysroot "$libc" \
>      -isystem "$libc_inc" \
>      -L-user-start \
> -- 
> 2.34.1

It's not clear to me whether this works on all versions, but more
importantly, it's not clear whether it blocks the compiler header path
from being searched before the libc header path, which is necessary so
incompatible compiler-provided stdc headers don't get used.

Rich