$NetBSD$

Link with -lrt which is needed for shm_open
XXX unclear why only netbsd needs it

--- src/frameserver/avfeed/CMakeLists.txt.orig	2018-12-10 23:33:36.000000000 +0000
+++ src/frameserver/avfeed/CMakeLists.txt
@@ -17,6 +17,6 @@ if (AVFEED_SOURCES)
 		${AVFEED_DEFS}
 	)
 	target_include_directories(afsrv_avfeed PRIVATE ${FSRV_ROOT} ${AVFEED_INCLUDE_DIRS})
-	target_link_libraries(afsrv_avfeed ${STDLIB} arcan_shmif_int ${AVFEED_LIBS})
+	target_link_libraries(afsrv_avfeed ${STDLIB} arcan_shmif_int ${AVFEED_LIBS} rt)
 	install(TARGETS afsrv_avfeed DESTINATION bin)
 endif()