Please consider applying the linked patch for me this fixed a compilation failure.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=7cd7bb92544b3fab87d199f62abcceb4d0eb1203 commit 7cd7bb92544b3fab87d199f62abcceb4d0eb1203 Author: David Seifert <soap@gentoo.org> AuthorDate: 2019-05-30 16:50:52 +0000 Commit: David Seifert <soap@gentoo.org> CommitDate: 2019-05-30 16:50:52 +0000 dev-python/graph-tool: Bump version to 2.27 Closes: https://bugs.gentoo.org/675162 Closes: https://bugs.gentoo.org/686754 Package-Manager: Portage-2.3.67, Repoman-2.3.13 Signed-off-by: David Seifert <soap@gentoo.org> dev-python/graph-tool/Manifest | 1 + dev-python/graph-tool/graph-tool-2.27.ebuild | 79 ++++++++++++++++++++++++++++ profiles/package.mask | 1 + 3 files changed, 81 insertions(+)