diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1a1b7f4..509bf39 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,8 +14,91 @@ option(AUDIO_UNIX_JACK "Build Unix JACK audio server API" OFF)
 option(AUDIO_OSX_CORE "Build Mac OSX CoreAudio API" OFF)
 
 
+set(rtaudio_SOURCES RtAudio.cpp)
+
+set(LINKLIBS)
+if (CMAKE_SYSTEM_NAME MATCHES "kNetBSD.*|NetBSD.*")
+    message(STATUS "NetBSD detected, using OSS")
+    find_package(Threads REQUIRED CMAKE_THREAD_PREFER_PTHREAD)
+    list(APPEND LINKLIBS ossaudio ${CMAKE_THREAD_LIBS_INIT})
+    set(AUDIO_LINUX_OSS ON)
+elseif (UNIX AND NOT APPLE)
+    if (NOT AUDIO_LINUX_PULSE AND NOT AUDIO_LINUX_ALSA AND NOT AUDIO_LINUX_OSS AND NOT AUDIO_UNIX_JACK)
+        set(AUDIO_LINUX_ALSA ON)
+    endif()
+
+    if (AUDIO_LINUX_PULSE)
+        find_library(PULSE_LIB pulse)
+        find_library(PULSESIMPLE_LIB pulse-simple)
+        list(APPEND LINKLIBS ${PULSE_LIB} ${PULSESIMPLE_LIB})
+        add_definitions(-D__LINUX_PULSE__)
+        message(STATUS "Using Linux PulseAudio")
+    endif (AUDIO_LINUX_PULSE)
+    if (AUDIO_LINUX_ALSA)
+        find_package(ALSA)
+        find_package(Threads REQUIRED CMAKE_THREAD_PREFER_PTHREAD)
+        if (NOT ALSA_FOUND)
+            message(FATAL_ERROR "ALSA API requested but no ALSA dev libraries found")
+        endif()
+        add_defines(${ALSA_INCLUDE_DIR})
+        list(APPEND LINKLIBS ${ALSA_LIBRARY} ${CMAKE_THREAD_LIBS_INIT})
+        add_definitions(-D__LINUX_ALSA__)
+        message(STATUS "Using Linux ALSA")
+    endif (AUDIO_LINUX_ALSA)
+endif ()
 
 if (APPLE)
+    if (NOT AUDIO_OSX_CORE AND NOT AUDIO_UNIX_JACK)
+        set(AUDIO_OSX_CORE ON)
+    endif()
+
+    if (AUDIO_OSX_CORE)
+        find_library(COREAUDIO_LIB CoreAudio)
+        find_library(COREFOUNDATION_LIB CoreFoundation)
+        list(APPEND LINKLIBS ${COREAUDIO_LIB} ${COREFOUNDATION_LIB})
+        add_definitions(-D__MACOSX_CORE__)
+        message(STATUS "Using OSX CoreAudio")
+    endif (AUDIO_OSX_CORE)
 endif (APPLE)
 
+# JACK supported on many Unices
+if (UNIX)
+    if (AUDIO_UNIX_JACK)
+        find_library(JACK_LIB jack)
+        list(APPEND LINKLIBS ${JACK_LIB})
+#        jack_client_open
+#    AC_CHECK_LIB(asound, snd_pcm_open, , AC_MSG_ERROR(Jack support also requires the asound library!))], )
+        add_definitions(-D__UNIX_JACK__)
+        message(STATUS "Using JACK")
+    endif (AUDIO_UNIX_JACK)
+endif (UNIX)
+
+if (WIN32)
+    if (NOT AUDIO_WINDOWS_DS AND NOT AUDIO_WINDOWS_ASIO)
+        set(AUDIO_WINDOWS_DS ON)
+    endif()
+
+    include_directories(include)
+    list(APPEND LINKLIBS dsound winmm ole32)
+
+    if (AUDIO_WINDOWS_DS)
+        add_definitions(-D__WINDOWS_DS__)
+        message(STATUS "Using Windows DirectSound")
+    endif (AUDIO_WINDOWS_DS)
+    if (AUDIO_WINDOWS_ASIO)
+        list(APPEND rtaudio_SOURCES
+            include/asio.cpp
+            include/asiodrivers.cpp
+            include/asiolist.cpp
+            include/iasiothiscallresolver.cpp)
+        add_definitions(-D__WINDOWS_ASIO__)
+        message(STATUS "Using Windows ASIO")
+    endif (AUDIO_WINDOWS_ASIO)
+endif (WIN32)
+
+add_library(rtaudio SHARED ${rtaudio_SOURCES})
+add_library(rtaudio_static STATIC ${rtaudio_SOURCES})
+
+target_link_libraries(rtaudio ${LINKLIBS})
+