Add debian build-deps for mod_opal

fb2c5872 · Travis Cross · 0e22f1e9 · fb2c5872
--- a/debian/control-modules
+++ b/debian/control-modules
@@ -402,6 +402,7 @@ Description: mod_loopback
 Module: endpoints/mod_opal
 Description: mod_opal
 Adds mod_opal.
+Build-Depends: libopal-dev

 Module: endpoints/mod_portaudio
 Description: mod_portaudio