Bug 948842

Summary:	go-module.eclass: add support of GOAMD64 - for performance
Product:	Gentoo Linux	Reporter:	Vitaly Zdanevich <zdanevich.vitaly>
Component:	Eclasses	Assignee:	William Hubbs <williamh>
Status:	UNCONFIRMED ---
Severity:	normal	CC:	ionen, zdanevich.vitaly
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Vitaly Zdanevich 2025-01-26 05:50:16 UTC

See https://github.com/golang/wiki/blob/master/MinimumRequirements.md#amd64

Or it should be a USE flag, I do not know.

Related page: https://devmanual.gentoo.org/eclass-reference/go-module.eclass/index.html

Comment 1 Ionen Wolkens gentoo-dev

2025-01-26 05:54:00 UTC

You can just set GOAMD64="v3" or so as fitting in make.conf, not much different than adding -march= in *FLAGS through that.

Comment 2 Vitaly Zdanevich 2025-01-26 06:02:00 UTC

Oh, yes, thanks, I checked - app-shells/fzf built with this...

Comment 3 Ionen Wolkens gentoo-dev

2025-01-26 06:06:04 UTC

(if we really wanted this in the eclass, guess could deduce the feature level from *FLAGS like what qt6-build.eclass does for a workaround, but generally think it's best not assume what the user wants for cpu optimizations)