Fortunately, upstream has an 'engine' branch they are working on.
As stated in the release page of v0.9.14, it is the last version to support QtWebKit. Will wait for next release to update to QtWebEngine.
0.9.15 released: https://github.com/Sigil-Ebook/Sigil/releases
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=3969890de1f60c379ccf98332b77a389af7a01bc commit 3969890de1f60c379ccf98332b77a389af7a01bc Author: Zamarin Arthur <arthurzam@gmail.com> AuthorDate: 2019-07-21 05:44:15 +0000 Commit: Andreas Sturmlechner <asturm@gentoo.org> CommitDate: 2019-07-21 11:58:34 +0000 app-text/sigil: bump v0.9.16 Bug: https://bugs.gentoo.org/684776 Package-Manager: Portage-2.3.69, Repoman-2.3.16 Signed-off-by: Zamarin Arthur <arthurzam@gmail.com> Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org> app-text/sigil/Manifest | 1 + app-text/sigil/sigil-0.9.16.ebuild | 96 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 97 insertions(+)