This is an auto-filed bug because x11-plugins/wmbiff calls ar directly.
The issue was originally discovered on amd64, but it may be reproducible on other arches as well.
If you think that a different summary clarifies the issue better, feel free to change it.
Attached build log and emerge --info.
If you think it doesn't make sense fix these type of issues, I'd like to point out that won't be possible use a different AR implementation (like llvm-ar) by setting the AR variable. So this issue has been reproduced by setting the AR variable to x86_64-pc-linux-gnu-ar and by removing the /usr/bin/ar binary.
Created attachment 642752 [details]
build log and emerge --info
The bug has been closed via the following commit(s):
Author: Bernard Cafarelli <firstname.lastname@example.org>
AuthorDate: 2021-01-02 23:29:35 +0000
Commit: Bernard Cafarelli <email@example.com>
CommitDate: 2021-01-02 23:32:20 +0000
x11-plugins/wmbiff: do not call ar directly
Package-Manager: Portage-3.0.12, Repoman-3.0.2
Signed-off-by: Bernard Cafarelli <firstname.lastname@example.org>
x11-plugins/wmbiff/files/wmbiff-0.4.36-ar.patch | 11 +++++++++++
x11-plugins/wmbiff/wmbiff-0.4.36.ebuild | 9 ++++++++-
2 files changed, 19 insertions(+), 1 deletion(-)