adding a adding b adding t.h adding t/x a NONEXISTENT: No such file or directory a b t.h t/x a: No such file or directory NONEXISTENT: No such file or directory b t.h t/x a NONEXISTENT: No such file in rev ce18e5bc5cd3 a t/x b t.h % -I/-X with relative path should work b t.h t/x t/x t/x