Bug 473342

Summary:	sys-devel/gcc: Allow 3 stage bootstrapping to be disabled
Product:	Gentoo Linux	Reporter:	Raymond Jennings <shentino>
Component:	[OLD] Core system	Assignee:	Gentoo Toolchain Maintainers <toolchain>
Status:	RESOLVED WONTFIX
Severity:	enhancement	CC:	jer, sam
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Raymond Jennings 2013-06-15 06:16:43 UTC

Bootstrapping triples compilation time.

Allow it to be disabled, perhaps with a use flag or soemthing.

Upstream suggested --disable-bootstrap in configure, but the ebuild choked.  On further inspection I find that the toolchain eclass is forcing "bootstrap-lean" as a target.

Reproducible: Always

Comment 1 Raymond Jennings 2013-06-15 06:17:55 UTC

Just of note:  disabling bootstrap is supported by upstream gcc.

Comment 2 Ryan Hill (RETIRED) gentoo-dev

2013-06-15 18:06:59 UTC

That's why we use GCC_MAKE_TARGET rather than hardcoding it:

GCC_MAKE_TARGET="all" EXTRA_ECONF="--disable-bootstrap" emerge -av gcc

Comment 3 Raymond Jennings 2013-06-15 18:41:33 UTC

Thanks for documenting this.

Comment 4 Sam James archtester

2023-09-28 11:00:37 UTC

See also:

commit 1aa736843e87e105cbe479dd21dd09679dacfbaa
Author: Sam James <sam@gentoo.org>
Date:   Mon Jun 6 08:45:36 2022 +0100

    toolchain.eclass: allow forcefully disabling bootstrapping for development

    Users should *absolutely not* do this. It's just useful for quickly
    testing eclass changes.

    The resultant compiler may not be safe to use. Especially so if
    unusual flags and environment is used.

    Signed-off-by: Sam James <sam@gentoo.org>