This is an auto-filled bug because net-mail/courier-imap calls ar directly.
The issue was originally discovered on arm64, 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 aarch64-unknown-linux-gnu-ar and by removing the /usr/bin/ar binary.
Created attachment 636424 [details]
build log and emerge --info
The bug has been closed via the following commit(s):
Author: Alfredo Tupone <firstname.lastname@example.org>
AuthorDate: 2020-05-08 06:38:27 +0000
Commit: Alfredo Tupone <email@example.com>
CommitDate: 2020-05-08 06:39:17 +0000
net-mail/courier-imap: Not calling ar directly
Package-Manager: Portage-2.3.89, Repoman-2.3.20
Signed-off-by: Alfredo Tupone <firstname.lastname@example.org>
net-mail/courier-imap/courier-imap-5.0.8.ebuild | 1 +
net-mail/courier-imap/files/courier-imap-5.0.8-ar-fix.patch | 11 +++++++++++
2 files changed, 12 insertions(+)