Re: %set_build_flags, clang/flang-new and FC/FCFLAGS

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On 11/2/22 02:56, Florian Weimer wrote:
> * Benson Muite:
> 
>> On 11/1/22 06:35, Orion Poplawski wrote:
>>> While poking at building openmpi with clang, I started wondering
>>> about flang and some things:
>>> * Should %set_build_flags set FC?  I think it should since it sets
>>> FCFLAGS.
>>> * Is flang-new even worth bothering with?  See the following
>>> configure check:
> 
>> Yes, this will be helpful.  Significant work has gone into optimizing
>> this for A64FX
> 
> Fedora does not run well on A64FX because we enable PAC+BTI, adding
> significant overhead to most function calls.

How is this specific to A64FX?
-- 
Sincerely,
Demi Marie Obenour (she/her/hers)
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