Includes the following upstream commit to fix the build with CMake 3.0+:

commit ec580cb815c16ec1ab43a469d5af7d51d8d03082
Author: Chocobozzz <florian.chocobo@gmail.com>
Date:   Wed Jul 16 15:57:25 2014 +0200

    No namespaces for DBus interfaces. Fixes #4401
--- src/CMakeLists.txt.orig	2013-10-20 17:40:58.416968707 +0000
+++ src/CMakeLists.txt	2013-10-20 17:41:24.671967496 +0000
@@ -892,11 +892,6 @@ optional_source(LINUX SOURCES widgets/osd_x11.cpp)
 if(HAVE_DBUS)
   file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/dbus)
 
-  # Hack to get it to generate interfaces without namespaces - required
-  # because otherwise org::freedesktop::UDisks and
-  # org::freedesktop::UDisks::Device conflict.
-  list(APPEND QT_DBUSXML2CPP_EXECUTABLE -N)
-
   # MPRIS DBUS interfaces
   qt4_add_dbus_adaptor(SOURCES
       dbus/org.freedesktop.MediaPlayer.player.xml
@@ -964,6 +959,10 @@ if(HAVE_DBUS)
 
   # DeviceKit DBUS interfaces
   if(HAVE_DEVICEKIT)
+    set_source_files_properties(dbus/org.freedesktop.UDisks.xml
+        PROPERTIES NO_NAMESPACE dbus/udisks)
+    set_source_files_properties(dbus/org.freedesktop.UDisks.Device.xml
+        PROPERTIES NO_NAMESPACE dbus/udisksdevice)
     qt4_add_dbus_interface(SOURCES
         dbus/org.freedesktop.UDisks.xml
         dbus/udisks)
@@ -1322,6 +1322,7 @@
 
 if (${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
   target_link_libraries(clementine execinfo)
+  set_target_properties(clementine PROPERTIES OUTPUT_NAME clementine-player)
 endif (${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
 
 target_link_libraries(clementine