linux-kernel - Re: Building a allyesconfig kernel fails because macros are being redefined

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Message-ID: <20251013012423.GA331@ax162>
Date: Sun, 12 Oct 2025 18:24:23 -0700
From: Nathan Chancellor <nathan@...nel.org>
To: Jesper Juhl <jesperjuhl76@...il.com>
Cc: linux-kernel@...r.kernel.org
Subject: Re: Building a allyesconfig kernel fails because macros are being
 redefined

On Mon, Oct 13, 2025 at 01:47:54AM +0200, Jesper Juhl wrote:
> My current git HEAD is at  3a8660878839faadb4f1a6dd72c3179c1df56787
> 
> If I do :
>     make mrproper
>     make allyesconfig
>     make -j 33
> it eventually fails with :
> 
> ...
>  INSTALL libsubcmd_headers
>  CALL    scripts/checksyscalls.sh
>  CC [U]  samples/vfs/test-statx
>  CC [U]  samples/watch_queue/watch_test
> In file included from samples/vfs/test-statx.c:23:
> usr/include/linux/fcntl.h:160:9: error: ‘AT_RENAME_NOREPLACE’
> redefined [-Werror]
>  160 | #define AT_RENAME_NOREPLACE     0x0001
>      |         ^~~~~~~~~~~~~~~~~~~
> In file included from samples/vfs/test-statx.c:13:
> /usr/include/stdio.h:171:10: note: this is the location of the
> previous definition
>  171 | # define AT_RENAME_NOREPLACE RENAME_NOREPLACE
>      |          ^~~~~~~~~~~~~~~~~~~
> usr/include/linux/fcntl.h:161:9: error: ‘AT_RENAME_EXCHANGE’ redefined [-Werror]
>  161 | #define AT_RENAME_EXCHANGE      0x0002
>      |         ^~~~~~~~~~~~~~~~~~
> /usr/include/stdio.h:173:10: note: this is the location of the
> previous definition
>  173 | # define AT_RENAME_EXCHANGE RENAME_EXCHANGE
>      |          ^~~~~~~~~~~~~~~~~~
> usr/include/linux/fcntl.h:162:9: error: ‘AT_RENAME_WHITEOUT’ redefined [-Werror]
>  162 | #define AT_RENAME_WHITEOUT      0x0004
>      |         ^~~~~~~~~~~~~~~~~~
> /usr/include/stdio.h:175:10: note: this is the location of the
> previous definition
>  175 | # define AT_RENAME_WHITEOUT RENAME_WHITEOUT
>      |          ^~~~~~~~~~~~~~~~~~

This is a bug in glibc:

https://inbox.sourceware.org/libc-alpha/20250823052706.GA4056405@ax162/
https://sourceware.org/git?p=glibc.git;a=commit;h=1166170d95863e5a6f8121a5ca9d97713f524f49

Cheers,
Nathan