audio/oss: unbreak in FreeBSD > 12 Unbreak port in FreeBSD 12 and 13-CURRENT. Broken most likely due to r335879. While here: * Add missing LIB_DEPENDS and USES for ossxmix * Reorder some variables PR: 233018 Reported by: sergey@akhmatov.ru
head/audio/oss/Makefile