This is an auto-filled bug because sys-boot/syslinux 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 637114 [details]
build log and emerge --info
The bug has been closed via the following commit(s):
Author: Sergei Trofimovich <firstname.lastname@example.org>
AuthorDate: 2020-05-26 22:30:58 +0000
Commit: Sergei Trofimovich <email@example.com>
CommitDate: 2020-05-26 22:30:58 +0000
sys-boot/syslinux: respect user's AR, OBJCOPY, RANLIB, bug #721902
Reported-by: Agostino Sarubbo
Package-Manager: Portage-2.3.100, Repoman-2.3.22
Signed-off-by: Sergei Trofimovich <firstname.lastname@example.org>
sys-boot/syslinux/syslinux-6.04_pre1-r2.ebuild | 119 +++++++++++++++++++++++++
1 file changed, 119 insertions(+)