Currently there is no way to get appstream-compose from our packages, because -Dcompose=false is unconditionally passed for meson options. Extra deps seem to be cairo, gdk-pixbuf, freetype2, pango, fontconfig, and optionally (but probably strongly needed if compose is needed) librsvg. This is required by flatpak-builder-1.4, which is required by gnome-builder for builds based on flatpak manifests (at least older versions don't work, but we don't want to be stuck on older flatpak-builder version either way).
I went ahead and added it here: commit e56c12d89f36b99096887a36090b01a3c1fb1b3c Author: Luna <nullrequest@vivaldi.net> Date: 2025-01-19 15:31:08 -0800 dev-libs/appstream: add use flag to enable compose This adds a new use option compose to build appstream-compose. flatpak-builder since 1.3.4 requires appstream-compose. Signed-off-by: Luna <nullrequest@vivaldi.net> From: https://github.com/gentoo/gentoo/pull/36965 Signed-off-by: Zac Medico <zmedico@gentoo.org>
