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Date: Sat, 24 Apr 2021 14:07:53 -0700
From: Fangrui Song <i@...kray.me>
To: musl@...ts.openwall.com
Cc: Aodhnait Étaín <aodhneine@...tonmail.ch>
Subject: Re: Clang 10 errors during compiling musl 1.2.2
On 2021-04-24, Rich Felker wrote:
>On Sat, Apr 24, 2021 at 07:03:20PM +0000, Aodhnait Étaín wrote:
>> Hi,
>>
>> I tried to cross-compile musl 1.2.2 for RISC-V using clang 10 on Alpine
>> Linux in WSL. Sadly, it did not work, and instead failed during compiling
>> src/complex/catan.c.
>>
>> Linked below are output of configure and make, the preprocessed source
>> of catan.c and the run script.
>>
>> Compilation log: http://0x0.st/-mux.log
>> Preprocessed source: http://0x0.st/-mu3.c
>> Associated run script: http://0x0.st/-muY.sh
>>
>> I guess it has something to do with clang, so probably llvm-bugs would
>> be a more appropriate place to report it, but I'm still waiting for the
>> account registration confirmation on the llmv-project Bugzilla. So in
>> the meantime I decided to see if you peeps have any idea what's happening?
>
>Yes, this is surely a clang bug. But maybe someone here will have
>ideas about getting it fixed or know if it's already reported.
>
>Rich
I confirm clang 10.0.1 has the bug when compiling src/complex/catan.c. clang 11.0.0 from https://releases.llvm.org/ is good.
If your GCC installation is riscv64-linux-gnu-gcc, I recommend --target=riscv64-linux-gnu- or --target=riscv64-linux-gnu,
which matches the gcc executable name. --target=riscv64 is not recommended.
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