30 #ifndef _CALCIUM_INTERFACE_HXX_ 
   31 #define _CALCIUM_INTERFACE_HXX_ 
   33 #if defined(__CONST_H) || defined(__CALCIUM_H) 
   34 #error "The header CalciumInterface.hxx must be included before calcium.h" 
   38 #include "CalciumCxxInterface.hxx" 
   45 #include "CalciumCInterface.hxx"