This is an auto-filed bug because mail-client/cone 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 641038 [details]
build log and emerge --info
The bug has been closed via the following commit(s):
Author: Jakov Smolić <email@example.com>
AuthorDate: 2021-12-13 16:30:38 +0000
Commit: Jakov Smolić <firstname.lastname@example.org>
CommitDate: 2021-12-13 16:30:38 +0000
Signed-off-by: Jakov Smolić <email@example.com>
mail-client/cone/Manifest | 1 -
mail-client/cone/cone-1.0-r1.ebuild | 73 -----------------------
mail-client/cone/files/cone-1.0-no-spelling.patch | 46 --------------
mail-client/cone/metadata.xml | 8 ---
profiles/package.mask | 5 --
5 files changed, 133 deletions(-)