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Re: Trying to crosscompile for POWER9

From: Leo Famulari
Subject: Re: Trying to crosscompile for POWER9
Date: Mon, 22 Oct 2018 12:39:58 -0400
User-agent: Mutt/1.10.1 (2018-07-13)

On Sun, Oct 21, 2018 at 08:30:03AM +0200, Tobias Platen wrote:
> On 10/20/2018 09:09 PM, Tobias Platen wrote:
> Here are the build logs from guix. I have tried building the toolchain
> twice, but in both cases glibc failed to build.


> running configure fragment for sysdeps/powerpc/powerpc64/le
> checking if powerpc64le-linux-gcc supports binary128 floating point type... no
> checking if the target machine is at least POWER8... yes
> configure: error: ***  binary128 floating point type (GCC >= 6.2) is required 
> on powerpc64le.

Searching around, I found other distros hit the same problem for their
POWER ports, and needed to explicitly configure GCC >= 6.2 to build with
128-bit floating point types. Specifically, with the option

I hope that helps!

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