Initial obs-studio jack support

plugins/linux-jack/CMakeLists.txt

@@ -0,0 +1,32 @@
+project(linux-jack)
+
+if(DISABLE_JACK)
+	message(STATUS "JACK support disabled")
+	return()
+endif()
+
+find_package(Jack)
+if(NOT JACK_FOUND AND ENABLE_JACK)
+	message(FATAL_ERROR "JACK Audio Connection Kit not found but set as enabled")
+elseif(NOT JACK_FOUND)
+	message(STATUS "JACK Audio Connection Kit not found, disabling JACK plugin")
+	return()
+endif()
+
+include_directories(SYSTEM "${CMAKE_SOURCE_DIR}/libobs")
+
+set(linux-jack_SOURCES
+	linux-jack.c
+	jack-wrapper.c
+	jack-input.c
+)
+
+add_library(linux-jack MODULE
+	${linux-jack_SOURCES}
+)
+target_link_libraries(linux-jack
+	libobs
+	${JACK_LIBRARIES}
+)
+
+install_obs_plugin_with_data(linux-jack data)