diff --git a/CMakeLists.txt b/CMakeLists.txt
index ccc8ff03bf..db0404fe12 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,334 +2,10 @@ cmake_minimum_required(VERSION 2.8.12)
 
 project(StepMania)
 
-# Include the macros and functions.
-include(CMake/CMakeMacros.cmake)
-
-# Set up helper variables for future configuring.
-set(SM_CMAKE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/CMake")
-set(SM_EXTERN_DIR "${CMAKE_CURRENT_SOURCE_DIR}/extern")
-set(SM_BUNDLE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/bundle")
-set(SM_XCODE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/Xcode")
-set(SM_PROGRAM_DIR "${CMAKE_CURRENT_SOURCE_DIR}/Program")
-set(SM_BUILD_DIR "${CMAKE_CURRENT_SOURCE_DIR}/Build")
-set(SM_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/src")
-set(SM_DOC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/Docs")
-set(SM_ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
-
-# TODO: Reconsile the OS dependent naming scheme.
-if (WIN32 OR APPLE)
-  set(SM_EXE_NAME "StepMania")
-else()
-  set(SM_EXE_NAME "stepmania")
-endif()
-
-# Some OS specific helpers.
-if (CMAKE_SYSTEM_NAME MATCHES "Linux")
-  set(LINUX TRUE)
-else()
-  set(LINUX FALSE)
-endif()
-
-if (CMAKE_SYSTEM_NAME MATCHES "Darwin")
-  set(MACOSX TRUE)
-else()
-  set(MACOSX FALSE)
-endif()
-
-if (CMAKE_SYSTEM_NAME MATCHES "BSD")
-  set(BSD TRUE)
-else()
-  set(BSD FALSE)
-endif()
-
-# Allow for finding our libraries in a standard location.
-list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/CMake/Modules/")
-
-include("CMake/DefineOptions.cmake")
-include("CMake/SMDefs.cmake")
-
-# Put the predefined targets in separate groups.
-set_property(GLOBAL PROPERTY USE_FOLDERS ON)
-
-# Dependencies go here.
-set(ENDIANNESS "ENDIAN_LITTLE")
-if(WIN32)
-  set(HAS_OGG TRUE)
-  set(HAS_MP3 TRUE)
-  set(SYSTEM_PCRE_FOUND FALSE)
-  find_package(DirectX REQUIRED)
-  
-  # FFMPEG...it can be evil.
-  find_library(LIB_SWSCALE NAMES "swscale"
-    PATHS "${SM_EXTERN_DIR}/ffmpeg/lib" NO_DEFAULT_PATH
-  )
-  get_filename_component(LIB_SWSCALE ${LIB_SWSCALE} NAME)
-  
-  find_library(LIB_AVCODEC NAMES "avcodec"
-    PATHS "${SM_EXTERN_DIR}/ffmpeg/lib" NO_DEFAULT_PATH
-  )
-  get_filename_component(LIB_AVCODEC ${LIB_AVCODEC} NAME)
-  
-  find_library(LIB_AVFORMAT NAMES "avformat"
-    PATHS "${SM_EXTERN_DIR}/ffmpeg/lib" NO_DEFAULT_PATH
-  )
-  get_filename_component(LIB_AVFORMAT ${LIB_AVFORMAT} NAME)
-  
-  find_library(LIB_AVUTIL NAMES "avutil"
-    PATHS "${SM_EXTERN_DIR}/ffmpeg/lib" NO_DEFAULT_PATH
-  )
-  get_filename_component(LIB_AVUTIL ${LIB_AVUTIL} NAME)
-elseif(MACOSX)
-  set(HAS_OGG TRUE)
-  set(HAS_MP3 TRUE)
-  set(SYSTEM_PCRE_FOUND FALSE)
-  set(WITH_CRASH_HANDLER TRUE)
-  # Apple Archs needs to be 32-bit for now.
-  # When SDL2 is introduced, this may change.
-  set(CMAKE_OSX_ARCHITECTURES "i386")
-  set(CMAKE_OSX_DEPLOYMENT_TARGET "10.6")
-  set(CMAKE_OSX_DEPLOYMENT_TARGET_FULL "10.6.8")
-  
-  find_library(MAC_FRAME_ACCELERATE Accelerate ${CMAKE_SYSTEM_FRAMEWORK_PATH})
-  find_library(MAC_FRAME_APPKIT AppKit ${CMAKE_SYSTEM_FRAMEWORK_PATH})
-  find_library(MAC_FRAME_AUDIOTOOLBOX AudioToolbox ${CMAKE_SYSTEM_FRAMEWORK_PATH})
-  find_library(MAC_FRAME_AUDIOUNIT AudioUnit ${CMAKE_SYSTEM_FRAMEWORK_PATH})
-  find_library(MAC_FRAME_CARBON Carbon ${CMAKE_SYSTEM_FRAMEWORK_PATH})
-  find_library(MAC_FRAME_COCOA Cocoa ${CMAKE_SYSTEM_FRAMEWORK_PATH})
-  find_library(MAC_FRAME_COREAUDIO CoreAudio ${CMAKE_SYSTEM_FRAMEWORK_PATH})
-  find_library(MAC_FRAME_COREFOUNDATION CoreFoundation ${CMAKE_SYSTEM_FRAMEWORK_PATH})
-  find_library(MAC_FRAME_CORESERVICES CoreServices ${CMAKE_SYSTEM_FRAMEWORK_PATH})
-  find_library(MAC_FRAME_FOUNDATION Foundation ${CMAKE_SYSTEM_FRAMEWORK_PATH})
-  find_library(MAC_FRAME_IOKIT IOKit ${CMAKE_SYSTEM_FRAMEWORK_PATH})
-  find_library(MAC_FRAME_OPENGL OpenGL ${CMAKE_SYSTEM_FRAMEWORK_PATH})
-  find_library(MAC_FRAME_QUICKTIME QuickTime ${CMAKE_SYSTEM_FRAMEWORK_PATH})
-  
-  mark_as_advanced(
-    MAC_FRAME_ACCELERATE
-    MAC_FRAME_APPKIT
-    MAC_FRAME_AUDIOTOOLBOX
-    MAC_FRAME_AUDIOUNIT
-    MAC_FRAME_CARBON
-    MAC_FRAME_COCOA
-    MAC_FRAME_COREAUDIO
-    MAC_FRAME_COREFOUNDATION
-    MAC_FRAME_CORESERVICES
-    MAC_FRAME_FOUNDATION
-    MAC_FRAME_IOKIT
-    MAC_FRAME_OPENGL
-    MAC_FRAME_QUICKTIME
-  )
-elseif(LINUX)
-  include(TestBigEndian)
-  include(ExternalProject)
-
-  if(NOT WITH_GPL_LIBS)
-    message("Disabling GPL exclusive libraries: no MP3 support.")
-    set(WITH_MP3 OFF)
-  endif()
-
-  if(WITH_GTK2)
-    find_package("GTK2" 2.0)
-    if (${GTK2_FOUND})
-      set(HAS_GTK2 TRUE)
-    else()
-      set(HAS_GTK2 FALSE)
-      message("GTK2 was not found on your system. There will be no loading window.")
-    endif()
-  else()
-    set(HAS_GTK2 FALSE)
-  endif()
-
-  find_package(X11)
-
-  find_package(Pcre)
-  set(SYSTEM_PCRE_FOUND ${PCRE_FOUND})
-
-  find_package("BZip2")
-  if (NOT(${BZIP2_FOUND}))
-    message(FATAL_ERROR "Bzip2 support required.")
-  endif()
-
-  find_package("ZLIB")
-  if (NOT(${ZLIB_FOUND}))
-    message(FATAL_ERROR "zlib support required.")
-  endif()
-
-  find_library(DL_LIBRARY dl)
-  if(${LIBDL_FOUND})
-    set(HAS_LIBDL TRUE)
-  else()
-    set(HAS_LIBDL FALSE)
-  endif()
-
-  find_package(Xrandr)
-  if (${XRANDR_FOUND})
-    set(HAS_XRANDR TRUE)
-  else()
-    set(HAX_XRANDR FALSE)
-  endif()
-
-  if (WITH_OGG)
-    find_package(Ogg)
-    find_package(Vorbis)
-    find_package(VorbisFile)
-
-    if(NOT (OGG_FOUND AND VORBIS_FOUND AND VORBISFILE_FOUND) )
-      message(FATAL_ERROR "Not all vorbis libraries were found. If you wish to skip vorbis support, set WITH_OGG to OFF when configuring.")
-    else()
-      set(HAS_OGG TRUE)
-    endif()
-  endif()
-
-  if (WITH_MP3)
-    find_package(Mad)
-    if(NOT LIBMAD_FOUND)
-      message(FATAL_ERROR "Libmad library not found. If you wish to skip mp3 support, set WITH_MP3 to OFF when configuring.")
-    else()
-      set(HAS_MP3 TRUE)
-    endif()
-  endif()
-
-  find_package(PulseAudio)
-  if (PULSEAUDIO_FOUND)
-    set(HAS_PULSE TRUE)
-  else()
-    set(HAS_PULSE FALSE)
-  endif()
-
-  find_package(ALSA)
-  if (ALSA_FOUND)
-    set(HAS_ALSA TRUE)
-  else()
-    set(HAS_ALSA FALSE)
-  endif()
-
-  find_package(JACK)
-  if (JACK_FOUND)
-    set(HAS_JACK TRUE)
-  else()
-    set(HAS_JACK FALSE)
-  endif()
-
-  find_package(OSS)
-  if (OSS_FOUND)
-    set(HAS_OSS TRUE)
-  else()
-    set(HAS_OSS FALSE)
-  endif()
-
-  if(NOT OSS_FOUND AND NOT JACK_FOUND AND NOT ALSA_FOUND AND NOT PULSE_FOUND)
-    message(FATAL_ERROR "No sound libraries found. You will require at least one.")
-  else()
-    message(STATUS "-- At least one sound library was found. Do not worry if any were not found at this stage.")
-  endif()
-
-  find_package(Threads)
-  if (${Threads_FOUND})
-    set(HAS_PTHREAD TRUE)
-  else()
-    set(HAS_PTHREAD FALSE)
-  endif()
-
-  find_package(yasm)
-  if (NOT YASM_FOUND)
-    message("YASM was not found. Please install if you wish for ffmpeg support.")
-    set(WITH_FFMPEG OFF)
-  endif()
-
-  find_package("Va")
-
-  if(WITH_FFMPEG)
-    if (WITH_SYSTEM_FFMPEG)
-      find_package("FFMPEG")
-      if(NOT FFMPEG_FOUND)
-        message(FATAL_ERROR "System ffmpeg not found! Either install the libraries or remove the argument, then try again.")
-      else()
-
-        message(STATUS "-- Warning! Your version of ffmpeg may be too high! If you want to use the system ffmpeg, clear your cmake cache and do not include the system ffmpeg argument.")
-        set(HAS_FFMPEG TRUE)
-      endif()
-    else()
-      set(SM_FFMPEG_VERSION "2.1.3")
-      set(SM_FFMPEG_SRC_LIST "${SM_EXTERN_DIR}" "/ffmpeg-linux-" "${SM_FFMPEG_VERSION}")
-      sm_join("${SM_FFMPEG_SRC_LIST}" "" SM_FFMPEG_SRC_DIR)
-      set(SM_FFMPEG_ROOT "${CMAKE_BINARY_DIR}/ffmpeg-prefix/src/ffmpeg-build")
-      list(APPEND FFMPEG_CONFIGURE
-        "${SM_FFMPEG_SRC_DIR}/configure"
-        "--disable-programs"
-        "--disable-doc"
-        "--disable-avdevice"
-        "--disable-swresample"
-        "--disable-postproc"
-        "--disable-avfilter"
-        "--disable-shared"
-        "--enable-static"
-      )
-      if(WITH_GPL_LIBS)
-        list(APPEND FFMPEG_CONFIGURE
-          "--enable-gpl"
-        )
-      endif()
-
-      if (WITH_CRYSTALHD_DISABLED)
-        list(APPEND FFMPEG_CONFIGURE "--disable-crystalhd")
-      endif()
-
-      if (NOT WITH_EXTERNAL_WARNINGS)
-        list(APPEND FFMPEG_CONFIGURE
-          "--extra-cflags=-w"
-        )
-      endif()
-
-      if (IS_DIRECTORY "${SM_FFMPEG_SRC_DIR}")
-        externalproject_add("ffmpeg"
-          SOURCE_DIR "${SM_FFMPEG_SRC_DIR}"
-          CONFIGURE_COMMAND ${FFMPEG_CONFIGURE}
-          BUILD_COMMAND "make"
-          UPDATE_COMMAND ""
-          INSTALL_COMMAND ""
-          TEST_COMMAND ""
-        )
-      else()
-        # --shlibdir=$our_installdir/stepmania-$VERSION
-        externalproject_add("ffmpeg"
-          DOWNLOAD_COMMAND git clone "--branch" "n${SM_FFMPEG_VERSION}" "--depth" "1" "git://source.ffmpeg.org/ffmpeg.git" "${SM_FFMPEG_SRC_DIR}"
-          CONFIGURE_COMMAND "${FFMPEG_CONFIGURE}"
-          BUILD_COMMAND "make"
-          UPDATE_COMMAND ""
-          INSTALL_COMMAND ""
-          TEST_COMMAND ""
-        )
-      endif()
-      set(HAS_FFMPEG TRUE)
-    endif()
-  else()
-    set(HAS_FFMPEG FALSE)
-  endif()
-
-  find_package(OpenGL REQUIRED)
-  if (NOT ${OPENGL_FOUND})
-    message(FATAL_ERROR "OpenGL required to compile StepMania.")
-  endif()
-
-  find_package(GLEW REQUIRED)
-  if (NOT ${GLEW_FOUND})
-    message(FATAL_ERROR "GLEW required to compile StepMania.")
-  endif()
-
-  test_big_endian(BIGENDIAN)
-  if (${BIGENDIAN})
-    set(ENDIANNESS "ENDIAN_BIG")
-  endif()
-
-endif()
-
+include (StepmaniaCore.cmake)
 
 # The external libraries need to be included.
 add_subdirectory(extern)
 
 # The internal libraries and eventual executable to be used.
 add_subdirectory(src)
-
-# Define installer based items for cpack.
-include("CMake/CPackSetup.cmake")
diff --git a/StepmaniaCore.cmake b/StepmaniaCore.cmake
new file mode 100644
index 0000000000..688acebf85
--- /dev/null
+++ b/StepmaniaCore.cmake
@@ -0,0 +1,331 @@
+
+# Include the macros and functions.
+include(${CMAKE_CURRENT_LIST_DIR}/CMake/CMakeMacros.cmake)
+
+# Set up helper variables for future configuring.
+set(SM_CMAKE_DIR "${CMAKE_CURRENT_LIST_DIR}/CMake")
+set(SM_EXTERN_DIR "${CMAKE_CURRENT_LIST_DIR}/extern")
+set(SM_BUNDLE_DIR "${CMAKE_CURRENT_LIST_DIR}/bundle")
+set(SM_XCODE_DIR "${CMAKE_CURRENT_LIST_DIR}/Xcode")
+set(SM_PROGRAM_DIR "${CMAKE_CURRENT_LIST_DIR}/Program")
+set(SM_BUILD_DIR "${CMAKE_CURRENT_LIST_DIR}/Build")
+set(SM_SRC_DIR "${CMAKE_CURRENT_LIST_DIR}/src")
+set(SM_DOC_DIR "${CMAKE_CURRENT_LIST_DIR}/Docs")
+set(SM_ROOT_DIR "${CMAKE_CURRENT_LIST_DIR}")
+
+# TODO: Reconsile the OS dependent naming scheme.
+if (WIN32 OR APPLE)
+  set(SM_EXE_NAME "StepMania")
+else()
+  set(SM_EXE_NAME "stepmania")
+endif()
+
+# Some OS specific helpers.
+if (CMAKE_SYSTEM_NAME MATCHES "Linux")
+  set(LINUX TRUE)
+else()
+  set(LINUX FALSE)
+endif()
+
+if (CMAKE_SYSTEM_NAME MATCHES "Darwin")
+  set(MACOSX TRUE)
+else()
+  set(MACOSX FALSE)
+endif()
+
+if (CMAKE_SYSTEM_NAME MATCHES "BSD")
+  set(BSD TRUE)
+else()
+  set(BSD FALSE)
+endif()
+
+# Allow for finding our libraries in a standard location.
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}" "${CMAKE_CURRENT_LIST_DIR}/CMake/Modules/")
+
+include("${CMAKE_CURRENT_LIST_DIR}/CMake/DefineOptions.cmake")
+
+include("${CMAKE_CURRENT_LIST_DIR}/CMake/SMDefs.cmake")
+
+# Put the predefined targets in separate groups.
+set_property(GLOBAL PROPERTY USE_FOLDERS ON)
+
+# Dependencies go here.
+set(ENDIANNESS "ENDIAN_LITTLE")
+if(WIN32)
+  set(HAS_OGG TRUE)
+  set(HAS_MP3 TRUE)
+  set(SYSTEM_PCRE_FOUND FALSE)
+  find_package(DirectX REQUIRED)
+  
+  # FFMPEG...it can be evil.
+  find_library(LIB_SWSCALE NAMES "swscale"
+    PATHS "${SM_EXTERN_DIR}/ffmpeg/lib" NO_DEFAULT_PATH
+  )
+  get_filename_component(LIB_SWSCALE ${LIB_SWSCALE} NAME)
+  
+  find_library(LIB_AVCODEC NAMES "avcodec"
+    PATHS "${SM_EXTERN_DIR}/ffmpeg/lib" NO_DEFAULT_PATH
+  )
+  get_filename_component(LIB_AVCODEC ${LIB_AVCODEC} NAME)
+  
+  find_library(LIB_AVFORMAT NAMES "avformat"
+    PATHS "${SM_EXTERN_DIR}/ffmpeg/lib" NO_DEFAULT_PATH
+  )
+  get_filename_component(LIB_AVFORMAT ${LIB_AVFORMAT} NAME)
+  
+  find_library(LIB_AVUTIL NAMES "avutil"
+    PATHS "${SM_EXTERN_DIR}/ffmpeg/lib" NO_DEFAULT_PATH
+  )
+  get_filename_component(LIB_AVUTIL ${LIB_AVUTIL} NAME)
+elseif(MACOSX)
+  set(HAS_OGG TRUE)
+  set(HAS_MP3 TRUE)
+  set(SYSTEM_PCRE_FOUND FALSE)
+  set(WITH_CRASH_HANDLER TRUE)
+  # Apple Archs needs to be 32-bit for now.
+  # When SDL2 is introduced, this may change.
+  set(CMAKE_OSX_ARCHITECTURES "i386")
+  set(CMAKE_OSX_DEPLOYMENT_TARGET "10.6")
+  set(CMAKE_OSX_DEPLOYMENT_TARGET_FULL "10.6.8")
+  
+  find_library(MAC_FRAME_ACCELERATE Accelerate ${CMAKE_SYSTEM_FRAMEWORK_PATH})
+  find_library(MAC_FRAME_APPKIT AppKit ${CMAKE_SYSTEM_FRAMEWORK_PATH})
+  find_library(MAC_FRAME_AUDIOTOOLBOX AudioToolbox ${CMAKE_SYSTEM_FRAMEWORK_PATH})
+  find_library(MAC_FRAME_AUDIOUNIT AudioUnit ${CMAKE_SYSTEM_FRAMEWORK_PATH})
+  find_library(MAC_FRAME_CARBON Carbon ${CMAKE_SYSTEM_FRAMEWORK_PATH})
+  find_library(MAC_FRAME_COCOA Cocoa ${CMAKE_SYSTEM_FRAMEWORK_PATH})
+  find_library(MAC_FRAME_COREAUDIO CoreAudio ${CMAKE_SYSTEM_FRAMEWORK_PATH})
+  find_library(MAC_FRAME_COREFOUNDATION CoreFoundation ${CMAKE_SYSTEM_FRAMEWORK_PATH})
+  find_library(MAC_FRAME_CORESERVICES CoreServices ${CMAKE_SYSTEM_FRAMEWORK_PATH})
+  find_library(MAC_FRAME_FOUNDATION Foundation ${CMAKE_SYSTEM_FRAMEWORK_PATH})
+  find_library(MAC_FRAME_IOKIT IOKit ${CMAKE_SYSTEM_FRAMEWORK_PATH})
+  find_library(MAC_FRAME_OPENGL OpenGL ${CMAKE_SYSTEM_FRAMEWORK_PATH})
+  find_library(MAC_FRAME_QUICKTIME QuickTime ${CMAKE_SYSTEM_FRAMEWORK_PATH})
+  
+  mark_as_advanced(
+    MAC_FRAME_ACCELERATE
+    MAC_FRAME_APPKIT
+    MAC_FRAME_AUDIOTOOLBOX
+    MAC_FRAME_AUDIOUNIT
+    MAC_FRAME_CARBON
+    MAC_FRAME_COCOA
+    MAC_FRAME_COREAUDIO
+    MAC_FRAME_COREFOUNDATION
+    MAC_FRAME_CORESERVICES
+    MAC_FRAME_FOUNDATION
+    MAC_FRAME_IOKIT
+    MAC_FRAME_OPENGL
+    MAC_FRAME_QUICKTIME
+  )
+elseif(LINUX)
+  include(TestBigEndian)
+  include(ExternalProject)
+
+  if(NOT WITH_GPL_LIBS)
+    message("Disabling GPL exclusive libraries: no MP3 support.")
+    set(WITH_MP3 OFF)
+  endif()
+
+  if(WITH_GTK2)
+    find_package("GTK2" 2.0)
+    if (${GTK2_FOUND})
+      set(HAS_GTK2 TRUE)
+    else()
+      set(HAS_GTK2 FALSE)
+      message("GTK2 was not found on your system. There will be no loading window.")
+    endif()
+  else()
+    set(HAS_GTK2 FALSE)
+  endif()
+
+  find_package(X11)
+  if(${X11_FOUND})
+    set(HAS_X11 TRUE)
+  else()
+    set(HAS_X11 FALSE)
+  endif()
+
+  find_package(Pcre)
+  set(SYSTEM_PCRE_FOUND ${PCRE_FOUND})
+
+  find_package("BZip2")
+  if (NOT(${BZIP2_FOUND}))
+    message(FATAL_ERROR "Bzip2 support required.")
+  endif()
+
+  find_package("ZLIB")
+  if (NOT(${ZLIB_FOUND}))
+    message(FATAL_ERROR "zlib support required.")
+  endif()
+
+  find_library(DL_LIBRARY dl)
+  if(${LIBDL_FOUND})
+    set(HAS_LIBDL TRUE)
+  else()
+    set(HAS_LIBDL FALSE)
+  endif()
+
+  find_package(Xrandr)
+  if (${XRANDR_FOUND})
+    set(HAS_XRANDR TRUE)
+  else()
+    set(HAX_XRANDR FALSE)
+  endif()
+
+  if (WITH_OGG)
+    find_package(Ogg)
+    find_package(Vorbis)
+    find_package(VorbisFile)
+
+    if(NOT (OGG_FOUND AND VORBIS_FOUND AND VORBISFILE_FOUND) )
+      message(FATAL_ERROR "Not all vorbis libraries were found. If you wish to skip vorbis support, set WITH_OGG to OFF when configuring.")
+    else()
+      set(HAS_OGG TRUE)
+    endif()
+  endif()
+
+  if (WITH_MP3)
+    find_package(Mad)
+    if(NOT LIBMAD_FOUND)
+      message(FATAL_ERROR "Libmad library not found. If you wish to skip mp3 support, set WITH_MP3 to OFF when configuring.")
+    else()
+      set(HAS_MP3 TRUE)
+    endif()
+  endif()
+
+  find_package(PulseAudio)
+  if (PULSEAUDIO_FOUND)
+    set(HAS_PULSE TRUE)
+  else()
+    set(HAS_PULSE FALSE)
+  endif()
+
+  find_package(ALSA)
+  if (ALSA_FOUND)
+    set(HAS_ALSA TRUE)
+  else()
+    set(HAS_ALSA FALSE)
+  endif()
+
+  find_package(JACK)
+  if (JACK_FOUND)
+    set(HAS_JACK TRUE)
+  else()
+    set(HAS_JACK FALSE)
+  endif()
+
+  find_package(OSS)
+  if (OSS_FOUND)
+    set(HAS_OSS TRUE)
+  else()
+    set(HAS_OSS FALSE)
+  endif()
+
+  if(NOT OSS_FOUND AND NOT JACK_FOUND AND NOT ALSA_FOUND AND NOT PULSE_FOUND)
+    message(FATAL_ERROR "No sound libraries found. You will require at least one.")
+  else()
+    message(STATUS "-- At least one sound library was found. Do not worry if any were not found at this stage.")
+  endif()
+
+  find_package(Threads)
+  if (${Threads_FOUND})
+    set(HAS_PTHREAD TRUE)
+  else()
+    set(HAS_PTHREAD FALSE)
+  endif()
+
+  find_package(yasm)
+  if (NOT YASM_FOUND)
+    message("YASM was not found. Please install if you wish for ffmpeg support.")
+    set(WITH_FFMPEG OFF)
+  endif()
+
+  find_package("Va")
+
+  if(WITH_FFMPEG)
+    if (WITH_SYSTEM_FFMPEG)
+      find_package("FFMPEG")
+      if(NOT FFMPEG_FOUND)
+        message(FATAL_ERROR "System ffmpeg not found! Either install the libraries or remove the argument, then try again.")
+      else()
+
+        message(STATUS "-- Warning! Your version of ffmpeg may be too high! If you want to use the system ffmpeg, clear your cmake cache and do not include the system ffmpeg argument.")
+        set(HAS_FFMPEG TRUE)
+      endif()
+    else()
+      set(SM_FFMPEG_VERSION "2.1.3")
+      set(SM_FFMPEG_SRC_LIST "${SM_EXTERN_DIR}" "/ffmpeg-linux-" "${SM_FFMPEG_VERSION}")
+      sm_join("${SM_FFMPEG_SRC_LIST}" "" SM_FFMPEG_SRC_DIR)
+      set(SM_FFMPEG_ROOT "${CMAKE_BINARY_DIR}/ffmpeg-prefix/src/ffmpeg-build")
+      list(APPEND FFMPEG_CONFIGURE
+        "${SM_FFMPEG_SRC_DIR}/configure"
+        "--disable-programs"
+        "--disable-doc"
+        "--disable-avdevice"
+        "--disable-swresample"
+        "--disable-postproc"
+        "--disable-avfilter"
+        "--disable-shared"
+        "--enable-static"
+      )
+      if(WITH_GPL_LIBS)
+        list(APPEND FFMPEG_CONFIGURE
+          "--enable-gpl"
+        )
+      endif()
+
+      if (WITH_CRYSTALHD_DISABLED)
+        list(APPEND FFMPEG_CONFIGURE "--disable-crystalhd")
+      endif()
+
+      if (NOT WITH_EXTERNAL_WARNINGS)
+        list(APPEND FFMPEG_CONFIGURE
+          "--extra-cflags=-w"
+        )
+      endif()
+
+      if (IS_DIRECTORY "${SM_FFMPEG_SRC_DIR}")
+        externalproject_add("ffmpeg"
+          SOURCE_DIR "${SM_FFMPEG_SRC_DIR}"
+          CONFIGURE_COMMAND ${FFMPEG_CONFIGURE}
+          BUILD_COMMAND "make"
+          UPDATE_COMMAND ""
+          INSTALL_COMMAND ""
+          TEST_COMMAND ""
+        )
+      else()
+        # --shlibdir=$our_installdir/stepmania-$VERSION
+        externalproject_add("ffmpeg"
+          DOWNLOAD_COMMAND git clone "--branch" "n${SM_FFMPEG_VERSION}" "--depth" "1" "git://source.ffmpeg.org/ffmpeg.git" "${SM_FFMPEG_SRC_DIR}"
+          CONFIGURE_COMMAND "${FFMPEG_CONFIGURE}"
+          BUILD_COMMAND "make"
+          UPDATE_COMMAND ""
+          INSTALL_COMMAND ""
+          TEST_COMMAND ""
+        )
+      endif()
+      set(HAS_FFMPEG TRUE)
+    endif()
+  else()
+    set(HAS_FFMPEG FALSE)
+  endif()
+
+  find_package(OpenGL REQUIRED)
+  if (NOT ${OPENGL_FOUND})
+    message(FATAL_ERROR "OpenGL required to compile StepMania.")
+  endif()
+
+  find_package(GLEW REQUIRED)
+  if (NOT ${GLEW_FOUND})
+    message(FATAL_ERROR "GLEW required to compile StepMania.")
+  endif()
+
+  test_big_endian(BIGENDIAN)
+  if (${BIGENDIAN})
+    set(ENDIANNESS "ENDIAN_BIG")
+  endif()
+
+endif()
+
+# Define installer based items for cpack.
+include("${CMAKE_CURRENT_LIST_DIR}/CMake/CPackSetup.cmake")