Bug 667598 (wabi-no-wabi)

Summary:	sys-devel/gcc-8.2.0-r3 - cc1plus: warning: -Wabi won't warn about anything [-Wabi]
Product:	Gentoo Linux	Reporter:	Jeroen Roovers (RETIRED) <jer>
Component:	Current packages	Assignee:	Gentoo Toolchain Maintainers <toolchain>
Status:	RESOLVED OBSOLETE
Severity:	normal	CC:	slyfox
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://bugs.gentoo.org/show_bug.cgi?id=663928
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	sys-devel:gcc-8.2.0-r3:20180926-092859.log.xz

Description Jeroen Roovers (RETIRED) gentoo-dev

2018-10-02 18:47:50 UTC

cc1plus: warning: -Wabi won't warn about anything [-Wabi]
cc1plus: note: -Wabi warns about differences from the most up-to-date ABI, which is also used by default
cc1plus: note: use e.g. -Wabi=11 to warn about changes from GCC 7

Comment 1 Jeroen Roovers (RETIRED) gentoo-dev

2018-10-02 18:50:17 UTC

Created attachment 549040 [details]
sys-devel:gcc-8.2.0-r3:20180926-092859.log.xz

Comment 2 Sergei Trofimovich (RETIRED) gentoo-dev

2018-10-02 20:50:41 UTC

https://github.com/gcc-mirror/gcc/commit/ae5baadd3e080a87f050bdfea2c50737c4a7f915 changed behaviour of '-Wabi -fabi-version=n'. Now gcc requires '-Wabi=n' instead and complains about '-Wabi' doing nothing.

Is this bug about fixing other packages or a request to change something in gcc itself?

Comment 3 Jeroen Roovers (RETIRED) gentoo-dev

2018-10-05 17:49:15 UTC

Well, it's a bit odd that GCC should pass -Wabi in its own build system, so the bug is about sys-devel/gcc. Perhaps it's used for some architectures and not others?

Comment 4 Andreas K. Hüttel archtester

2021-01-10 21:09:49 UTC

I guess we can close this now.