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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@gnu.org>
To: Florian Weimer <fweimer@redhat.com>
Cc: Ludovic =?utf-8?Q?Court=C3=A8s?= via Libc-alpha <libc-alpha@sourceware.org>
Subject: Re: [PATCH powerpc64le] Use the target 'objcopy' when cross-compiling.
References: <20210707155547.15277-1-ludo@gnu.org>
 <875yxm3y8h.fsf@oldenburg.str.redhat.com>
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Hi,

Florian Weimer <fweimer@redhat.com> skribis:

> * Ludovic Court=C3=A8s via Libc-alpha:
>
>> When cross-compiling to powerpc64le-linux-gnu,
>> sysdeps/powerpc/powerpc64/le/Makefile would use "objcopy", leading to
>> errors like:
>>
>>   objcopy: Unable to recognise the format of the input file `=E2=80=A6/n=
o_ldbl_gnu_attribute.o'
>>
>> This patch changes 'configure.ac' to use AC_CHECK_TOOL rather than
>> '$CC -print-prog-name=3Dobjcopy' to determine the value of the OBJCOPY
>> variable.  That way, OBJCOPY is set to TRIPLET-objcopy when
>> cross-compiling for TRIPLET.
>
> Hmm.  Why doesn't '$CC -print-prog-name=3Dobjcopy' result in the right
> command name?

Is it supposed to?  Looking at gcc/gcc.c:find_a_file, I=E2=80=99m not sure.
For me it prints =E2=80=98objcopy=E2=80=99, and when I run:

  strace aarch64-linux-gnu-gcc -print-prog-name=3Dobjcopy

=E2=80=A6 I only see it look for =E2=80=98objcopy=E2=80=99, not =E2=80=98aa=
rch64-linux-gnu-objcopy=E2=80=99.

Could it be a packaging issue?

Thanks,
Ludo=E2=80=99.