[fpc-pascal] Does FPC has consts of portable OS error codes?

[Bihar Anwar]

I mean, for example, are there something like:

  - fpcError_ERROR_PATH_NOT_FOUND = ESysENOENT  in UNIX
    fpcError_ERROR_PATH_NOT_FOUND = ERROR_PATH_NOT_FOUND  in Windows

  - fpcERROR_FILENAME_EXCED_RANGE = ESysENAMETOOLONG  in UNIX
    fpcERROR_FILENAME_EXCED_RANGE = ERROR_FILENAME_EXCED_RANGE  in Windows

  - etc.