Frank Barchard wrote: > Thank! The types should be possible to deal with. Any suggestions for a > portable 64 bit fseek? I think #ifdef _WIN32 # ifdef __MINGW32__ # define fseeko fseeko64 # define ftello ftello64 # else # define fseeko _fseeki64 # define ftello _ftelli64 # endif #endif is the closest you're going to get. Regards, Karl Blomster