This is an auto-filled bug because dev-libs/bcm2835 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 638824 [details]
build log and emerge --info
The bug has been closed via the following commit(s):
Author: Chí-Thanh Christopher Nguyễn <firstname.lastname@example.org>
AuthorDate: 2020-09-26 19:53:09 +0000
Commit: Chí-Thanh Christopher Nguyễn <email@example.com>
CommitDate: 2020-09-26 19:53:09 +0000
dev-libs/bcm2835: bump to 1.68, respect user-specified AR
Package-Manager: Portage-3.0.4, Repoman-3.0.1
Signed-off-by: Chí-Thanh Christopher Nguyễn <firstname.lastname@example.org>
dev-libs/bcm2835/Manifest | 1 +
dev-libs/bcm2835/bcm2835-1.68.ebuild | 31 +++++++++++++++++++++++++++++++
2 files changed, 32 insertions(+)