Bug 470032

Summary:	sys-devel/gcc LTO USE flag is no longer enabled by default
Product:	Gentoo Linux	Reporter:	Anton Bolshakov <anton.bugs>
Component:	[OLD] Core system	Assignee:	Gentoo Linux bug wranglers <bug-wranglers>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	rhill
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Anton Bolshakov 2013-05-16 01:23:07 UTC

Hi Ryan,

Could you confirm that LTO use flag will not be enabled by default?
It is not clear from the changelog.

I have an ebuild (hashkill) in pentoo overlay which relies on that and need to know if I need to fix it or the last change went wrong.

I still see 
  tc_version_is_at_least "4.6" && IUSE+=" lto"
in the toolchain.eclass but somehow it is not enforced.

Cheers,
Anton

Comment 1 Ryan Hill (RETIRED) gentoo-dev

2013-05-16 02:44:33 UTC

No flags are enabled by default.  That would require EAPI 2, which the eclass isn't.  You will have to add a USE flag dep to your ebuild.