Set XDG_DATA_DIRS to use the selected wine.desktop, allows e.g. 'xdg-open my.exe' for file managers

Packages describing “xdg” as local USE flag

Package “xdg” Flag Description
app-eselect/eselect-wine Set XDG_DATA_DIRS to use the selected wine.desktop, allows e.g. 'xdg-open my.exe' for file managers
x11-wm/xpra Enable support for XDG-based menus
x11-misc/gmrun Enable xdg spec for configuration and history files location
x11-wm/openbox Install the python xdg files for xdg autostart
dev-perl/File-HomeDir Ensure XDG Semantics for returned paths via x11-misc/xdg-user-dirs

All packages providing a “xdg” USE flag (3)