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Message-ID: <CAD0C5PDA_Q3mWZMvLokmLqtpFTLBRR36eAXn5un3DL84vG=RuA@mail.gmail.com>
Date: Tue, 12 Oct 2021 16:55:17 +1100
From: Matt Andrews <mattandrews@...il.com>
To: musl@...ts.openwall.com
Subject: Re: Newbie cross compiling with LLVM
> --rtlib=compiler-rt
Is that a compiler option or a linker option? I used it in both places, but
still get the same error.
On Tue, Oct 12, 2021 at 4:00 PM Nagakamira <nagakamira@...il.com> wrote:
> --rtlib=compiler-rt
>
> On Tue, Oct 12, 2021, 7:58 AM Matt Andrews <mattandrews@...il.com> wrote:
>
>> > -fuse-ld=lld
>>
>> I actually used
>>
>> -fuse-ld=ld.lld
>>
>> That did the trick, but has unlocked another error
>>
>> ld.lld: error: unable to find library -lgcc
>> ld.lld: error: unable to find library -lgcc_eh
>>
>> I thought musl compiles with it's own headers?
>>
>> On Tue, Oct 12, 2021 at 3:54 PM Nagakamira <nagakamira@...il.com> wrote:
>>
>>> -fuse-ld=lld
>>>
>>> On Tue, Oct 12, 2021, 3:26 AM Jeffrey Walton <noloader@...il.com> wrote:
>>>
>>>> On Mon, Oct 11, 2021 at 7:55 PM Matt Andrews <mattandrews@...il.com>
>>>> wrote:
>>>> >
>>>> > >> How do I specify which linker to use?
>>>> > >
>>>> > >LD. Also see
>>>> https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html
>>>> .
>>>> >
>>>> > Looking at the ./configure for musl (which is not based on autoconf
>>>> according to the docs), there is no mention of LD. Setting LD for
>>>> ./configure and/or the call to make still results in the error.
>>>> >
>>>> > Who calls the linker? The compiler or make? Shouldn't clang know
>>>> where it's linker is? How to tell clang which linker to use?
>>>>
>>>> You can have the compiler driver call the linker for you by specifying
>>>> -o with an output file name. In that case, $CC or $CXX will drive the
>>>> link. And in this case, your LDFLAGS should prefix options with -Wl to
>>>> tell the compiler driver the option is for the linker.
>>>>
>>>> Jeff
>>>>
>>>
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