[akpm-mm:mm-nonmm-unstable 86/104] liveupdate.c:21:10: fatal error: errno.h: No such file or directory

[akpm-mm:mm-nonmm-unstable 86/104] liveupdate.c:21:10: fatal error: errno.h: No such file or directory

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable
head:   5b8dc8b45ebd9e7f3fea3adefeccd9ce94215103
commit: 2c55496371f19ce7570897a3d7b807d0a2b04dd9 [86/104] selftests/liveupdate: add userspace API selftests
config: riscv-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20251123/202511231253.aLRTg9sG-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251123/202511231253.aLRTg9sG-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/r/202511231253.aLRTg9sG-lkp@intel.com/

Note: the akpm-mm/mm-nonmm-unstable HEAD 5b8dc8b45ebd9e7f3fea3adefeccd9ce94215103 builds fine.
      It only hurts bisectability.

All errors (new ones prefixed by >>):

>> liveupdate.c:21:10: fatal error: errno.h: No such file or directory
      21 | #include <errno.h>
         |          ^~~~~~~~~
   compilation terminated.

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [akpm-mm:mm-nonmm-unstable 86/104] liveupdate.c:21:10: fatal error: errno.h: No such file or directory

[Pasha Tatashin]

> Note: the akpm-mm/mm-nonmm-unstable HEAD 5b8dc8b45ebd9e7f3fea3adefeccd9ce94215103 builds fine.
>       It only hurts bisectability.
>
> All errors (new ones prefixed by >>):
>
> >> liveupdate.c:21:10: fatal error: errno.h: No such file or directory
>       21 | #include <errno.h>
>          |          ^~~~~~~~~
>    compilation terminated.

I am not sure what needs to be done here. I have tried to reproduce
this, and every single other selftest that includes standard libraries
(most of them) spits out exactly the same error.

Pasha