For robustness in the face of user changes to project structure, now also invoke IncludeDir for $(TOP) and $(TOP)/src.
For robustness in the face of user changes to project structure, now also
invoke IncludeDir for $(TOP) and $(TOP)/src.


git-svn-id: 28d9401aa571d5108e51b194aae6f24ca5964c06@17966 8cc4aa7f-3514-0410-904f-f2cc9021211c

crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS