When you run the subversion status command, it will show lot of files that you don't intend to check-in in the repository, like the temporary object files. You can tell subversion to ignore all such files in a particular directory.
svn propset svn:ignore *.o.d DebugUnicode
svn st
svn st
This will tell subversion to ignore all the *.o.d files in the DebugUnicode directory.
You can also create a file, say ignore.txt and add all the files or directories to be ignored, one in each line and pass that file to the subversion using the -F command line option
svn propset svn:ignore -F ignore.txt DebugUnicode
Interesting information, I