This is an auto-filed bug because sci-mathematics/why3-for-spark calls cc 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. NOTE: 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 CC implementation (like clang) by setting the CC variable. So this issue has been reproduced by setting the CC variable to x86_64-pc-linux-gnu-gcc and by removing the /usr/bin/cc - /usr/bin/gcc binaries.
Created attachment 642046 [details] build.log build log and emerge --info
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=80264f6226c82b6ae16c92c98cd7835e71a53680 commit 80264f6226c82b6ae16c92c98cd7835e71a53680 Author: Alfredo Tupone <tupone@gentoo.org> AuthorDate: 2020-05-27 19:24:39 +0000 Commit: Alfredo Tupone <tupone@gentoo.org> CommitDate: 2020-05-27 19:24:39 +0000 sci-mathematics/why3-for-spark: use CC Closes: https://bugs.gentoo.org/725598 Package-Manager: Portage-2.3.99, Repoman-2.3.22 Signed-off-by: Alfredo Tupone <tupone@gentoo.org> .../why3-for-spark/files/why3-for-spark-2019-gentoo.patch | 10 ++++++++++ 1 file changed, 10 insertions(+)