Porting the code from VC++ to eVC

I am facing issues while porting the code from VC++ to EVC such as   sys/types.h not getting complied. Similalry error.h getting complilation   error.    Is there reference available for this? Where I can know which things in C++   can be changed to particular function in EVC for compilating my code   successfully.    Any Pointer for this?    Thanks,  JJ


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