Fix compilation error caused by missing target relation

Space clip depends on DNA now so that it can access offsets.

source/blender/editors/space_clip/CMakeLists.txt

@@ -72,4 +72,8 @@ if(WITH_INTERNATIONAL)
   add_definitions(-DWITH_INTERNATIONAL)
 endif()
 
+
 blender_add_lib(bf_editor_space_clip "${SRC}" "${INC}" "${INC_SYS}" "${LIB}")
+
+# Needed so we can use dna_type_offsets.h for defaults initialization.
+add_dependencies(bf_editor_space_clip bf_dna)