Messages in this thread | | | From | xu xin <> | Subject | Re: [PATCH linux-next] tools: compiler-gcc.h: Keep compatible with older GCC versions | Date | Thu, 6 Jan 2022 06:25:08 +0000 |
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> GNU C 5.1
> This applies to both HOSTCC and CC.
> > Undefined __has_attribute as we built the whole kernel and tools. > > > > To solve this, this patch is given to keep the compatibility with older > > GCC versions.
Yes, but I think this error is a little unfriendly to users using a lower version of host GCC when cross compiling.
Perhaps "#if gcc_version > = 51000" could be added to avoid the error 'Undefined __has_attribute'
or we can add `#error "hostcc don't support _has_attribute` to remind the user of the cause of the error.
Or just use my previous patch.
I hope we can do something here to promote the situation as Nathan talked before:
https://lore.kernel.org/all/91B93D4D-BEC8-4ACD-B71F-27C54D8B1B78@kernel.org/
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