Commented out export of missing CRML source file to avoid build error.
There are no known side effects of this file being missing, so this seems a reasonable way to avoid the build error.
# include <using/istream>
using _STLP_VENDOR_STD::cin;
using _STLP_VENDOR_STD::cout;
using _STLP_VENDOR_STD::cerr;
using _STLP_VENDOR_STD::clog;
# if ! defined (_STLP_NO_WIDE_STREAMS)
using _STLP_VENDOR_STD::wcin;
using _STLP_VENDOR_STD::wcout;
using _STLP_VENDOR_STD::wcerr;
using _STLP_VENDOR_STD::wclog;
# endif