Currently libxfce4ui builds with --enable-gtk2 which can possibly be made optional, considering that Xfce has migrated its core components to gtk+3 in the 4.14 release.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=5ea4726363a555c23329148a18fd9c0f0c4e4156 commit 5ea4726363a555c23329148a18fd9c0f0c4e4156 Author: Michał Górny <mgorny@gentoo.org> AuthorDate: 2019-08-22 11:23:12 +0000 Commit: Michał Górny <mgorny@gentoo.org> CommitDate: 2019-08-22 12:31:28 +0000 xfce-base/libxfce4ui: Make GTK+2 optional Closes: https://bugs.gentoo.org/692712 Signed-off-by: Michał Górny <mgorny@gentoo.org> xfce-base/libxfce4ui/libxfce4ui-4.14.1.ebuild | 8 ++++---- xfce-base/libxfce4ui/metadata.xml | 1 + 2 files changed, 5 insertions(+), 4 deletions(-)