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SubjectRe: [PATCH] kbuild: use POSIX-compatible grep option
From
Hi Masahiro,

On 2022-10-17 23:31, Masahiro Yamada wrote:
> On Tue, Oct 18, 2022 at 12:02 AM Stefan Hansson <newbie13xd@gmail.com> wrote:
>>
>> --file is a GNU extension to grep which is not available in all
>> implementations (such as BusyBox). Use the -f option instead which is
>> eqvuialent according to the GNU grep manpage[1] and is present in
>> POSIX[2].
>>
>> [1] https://www.gnu.org/software/grep/manual/grep.html
>> [2] https://pubs.opengroup.org/onlinepubs/9699919799/
>
>
> This link does not show the spec of grep.
>
>
> Did you mean this?
>
> https://pubs.opengroup.org/onlinepubs/9699919799/utilities/grep.html
>
>

Yes, sorry, that's a better link. I'm new to this. Do you want me to
send a v2 with the commit message updated?

>
>
> Thanks.
>
>
>
>
>
>>
>> Signed-off-by: Stefan Hansson <newbie13xd@gmail.com>
>> ---
>> Makefile | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/Makefile b/Makefile
>> index c690361b393f..3513a6db66a2 100644
>> --- a/Makefile
>> +++ b/Makefile
>> @@ -1218,7 +1218,7 @@ quiet_cmd_ar_vmlinux.a = AR $@
>> cmd_ar_vmlinux.a = \
>> rm -f $@; \
>> $(AR) cDPrST $@ $(KBUILD_VMLINUX_OBJS); \
>> - $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -F --file=$(srctree)/scripts/head-object-list.txt)
>> + $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -Ff $(srctree)/scripts/head-object-list.txt)
>>
>> targets += vmlinux.a
>> vmlinux.a: $(KBUILD_VMLINUX_OBJS) scripts/head-object-list.txt autoksyms_recursive FORCE
>> --
>> 2.37.3
>>
>
>

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