Please backport the patch https://gitlab.freedesktop.org/dbus/dbus-glib/-/commit/39f0ae6152acfb3d8ca086090a02e0aa8742f050 so that glib-genmarshal is configurable. A snapshot ebuild could probably be added since the repo hasn't changed in a year and a half, but I'll attach a patch to backport the commit.
Created attachment 674740 [details, diff] Backport
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=6b3c3df768a64c2783129cd14cdc3dc01a575eeb commit 6b3c3df768a64c2783129cd14cdc3dc01a575eeb Author: David Michael <fedora.dm0@gmail.com> AuthorDate: 2020-11-24 16:00:53 +0000 Commit: Mike Gilbert <floppym@gentoo.org> CommitDate: 2020-11-24 16:03:58 +0000 dev-libs/dbus-glib: backport pkg-config fix for glib-genmarshal Closes: https://bugs.gentoo.org/756355 Package-Manager: Portage-3.0.9, Repoman-3.0.2 Signed-off-by: David Michael <fedora.dm0@gmail.com> Signed-off-by: Mike Gilbert <floppym@gentoo.org> dev-libs/dbus-glib/dbus-glib-0.110.ebuild | 9 ++- .../dbus-glib-0.110-config-glib-genmarshal.conf | 76 ++++++++++++++++++++++ 2 files changed, 84 insertions(+), 1 deletion(-)