Bug 667598 – sys-devel/gcc-8.2.0-r3 - cc1plus: warning: -Wabi won't warn about anything [-Wabi]

• Status: RESOLVED OBSOLETE
• Product: Gentoo Linux

[Description Jeroen Roovers (RETIRED) 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) 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) 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) 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 2021-01-10 21:09:49 UTC]

I guess we can close this now.