Add opensound-cac211efd60d which builds from the hg repo since it contains unreleased fixes for Haiku

media-sound/opensound/opensound-cac211efd60d.bep

@@ -0,0 +1,23 @@
+DESCRIPTION="Open Sound System" 
+HOMEPAGE="http://developer.opensound.com/" 
+SRC_URI="hg+http://mercurial.opensound.com/#cac211efd60d"
+REVISION="1"
+STATUS_HAIKU="stable"
+DEPEND=""
+BUILD {
+	cd opensound-cac211efd60d
+	mkdir -p build
+	cd build
+	../configure
+	make
+}
+
+INSTALL {
+	cd opensound-cac211efd60d/build
+	if [ -n "${DESTDIR}" ];then
+		mkdir -p ${DESTDIR}/boot
+		cp -R prototype/* ${DESTDIR}/boot
+	else
+		make install
+	fi
+}