The rest of r14853. I changed mpi.h instead of mpi.h.in and then it

obviously didn't get committed...

This commit was SVN r14866.

The following SVN revision numbers were found above:
  r14853 --> open-mpi/ompi@beb6dd1924

ompi/include/mpi.h.in

@@ -1786,7 +1786,7 @@ OMPI_DECLSPEC  double PMPI_Wtime(void);
  */
 #if !defined(OMPI_SKIP_MPICXX) && OMPI_WANT_CXX_BINDINGS && !OMPI_BUILDING
 #if defined(__cplusplus) || defined(c_plusplus) 
-#include "ompi/mpi/cxx/mpicxx.h"
+#include "openmpi/ompi/mpi/cxx/mpicxx.h"
 #endif
 #endif