--- Makefile.orig	2019-12-10 16:13:13.271021000 +0100
+++ Makefile	2019-12-10 16:13:17.231081000 +0100
@@ -10,7 +10,7 @@
 
 # LICENSE set via USES_QT5 (bsd.qt.mk)
 
-USES=		compiler:c++11-lang gl gnome pkgconfig openal qmake:norecursive \
+USES=		compiler:c++11-lang gl gnome pkgconfig qmake:norecursive \
 		qt-dist:5,multimedia xorg
 USE_GL=		gl
 USE_GNOME=	glib20
@@ -36,6 +36,8 @@
 
 AUDIOPLUGIN_DESC=	Audio plugins to build
 OPENAL_DESC=		3D positional spatialized sound support
+
+OPENAL_VARS=		USES+=openal
 
 ALSA_LIB_DEPENDS=	libasound.so:audio/alsa-lib
 ALSA_VARS=		QT_CONFIG+=alsa