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

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Message-ID: <CAHaCkme7C8LDpWVX8TnDQQ+feWeQy_SA3HYfpyyPNFee_+Z2EA@mail.gmail.com>
Date: Mon, 13 Oct 2025 01:47:54 +0200
From: Jesper Juhl <jesperjuhl76@...il.com>
To: linux-kernel@...r.kernel.org
Subject: Building a allyesconfig kernel fails because macros are being redefined

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
     |          ^~~~~~~~~~~~~~~~~~
In file included from usr/include/linux/watch_queue.h:6,
                from samples/watch_queue/watch_test.c:19:
usr/include/linux/fcntl.h:160:9: error: ‘AT_RENAME_NOREPLACE’
redefined [-Werror]
 160 | #define AT_RENAME_NOREPLACE     0x0001
     |         ^~~~~~~~~~~~~~~~~~~
In file included from samples/watch_queue/watch_test.c:11:
/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
     |          ^~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[4]: *** [scripts/Makefile.userprogs:29:
samples/watch_queue/watch_test] Error 1
make[3]: *** [scripts/Makefile.build:556: samples/watch_queue] Error 2
make[3]: *** Waiting for unfinished jobs....
cc1: all warnings being treated as errors
make[4]: *** [scripts/Makefile.userprogs:29: samples/vfs/test-statx] Error 1
make[3]: *** [scripts/Makefile.build:556: samples/vfs] Error 2
make[2]: *** [scripts/Makefile.build:556: samples] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/home/jj/src/linux/Makefile:2010: .] Error 2
make: *** [Makefile:248: __sub-make] Error 2

I haven't looked into fixing it (yet), just wanted to let you all know :-)

Kind regards
Jesper Juhl