all: Guard internal headers
This adds inclusion guards to internal headers to make it clear theyr are internal and to ensure we don't expose them to the public API.
Signed-off-by: Adrien Plazas aplazas@gnome.org
This adds inclusion guards to internal headers to make it clear theyr are internal and to ensure we don't expose them to the public API.
Signed-off-by: Adrien Plazas aplazas@gnome.org