GNU bug report logs - #69689
30.0.50; cannot native compile with -flto in native-comp-compiler-options

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Message #23 received at 69689 <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 69689 <at> debbugs.gnu.org, look <at> strawberrytea.xyz
Subject: Re: bug#69689: 30.0.50; cannot native compile with -flto in
 native-comp-compiler-options
Date: Mon, 11 Mar 2024 18:03:32 -0700

On 3/11/24 06:38, Eli Zaretskii wrote:

> configure.ac says "experimental", so I guess it's not yet reliable
> enough?

It was added by Dmitry Antipov in 2012. I never use it, and didn't even 
recall it until I looked at configure.ac recently.

I've not have good luck with -lto elsewhere. It can make linking slow 
and it tends to expose compiler bugs. Unless someone's using it 
regularly I would consider it experimental.


> It also uses the getconf command (to figure out the number of CPU
> cores?), which AFAIK is for glibc-only systems, right?

Yes, but if getconf is missing 'configure' is supposed to do something 
reasonable anyway.

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