On Fri, Jul 22, 2022 at 03:30:16PM +0200, Hideki Yamane wrote: > Fedora, openSUSE, and Ubuntu did LTO by default, and I've not heard about > any wrong. Is the situation in Debian differ from theirs? Not everything works with LTO right away: debugging build problems or runtime problems takes effort. Ubuntu has kept track of some problematic packages via a new package: https://launchpad.net/ubuntu/+source/lto-disabled-list/+changelog Debian supports more architectures than Ubuntu or Fedora or OpenSUSE; this might mean there's costs unique to Debian. I suspect, without evidence, that Debian may have more diversity of usecases, and thus might find problems in software that are unnoticed in the other distributions. So while I think the Ubuntu experience is promising for enabling LTO in Debian, I don't think it's necessarily the exact same path. (Don't read this as encouragement or discouragement -- I just wanted to give a link to the lto-disabled-list package in the hopes that it helps inform the discussion.) Thanks
Attachment:
signature.asc
Description: PGP signature