control: empty - fix the static build
control: empty - fix the static build

Reported-by: Jan Palus <c77b48b3c33bb352a9f4416807f85bfa54820abb@pld-linux.org>
Fixes: https://github.com/alsa-project/alsa-lib/issues/157
Signed-off-by: Jaroslav Kysela <72edd5e1a572f82f059ccbb83c92b74d6cb051ff@perex.cz>

tiwai/alsa-lib,alsa-project/alsa-lib,tiwai/alsa-lib,tiwai/alsa-lib,alsa-project/alsa-lib,alsa-project/alsa-lib,alsa-project/alsa-lib,tiwai/alsa-lib