[Souvlaki]

pawn Код:

#define fwrite fwrite_utf8

//here your whole code

/*and at the bottom of your script*/

#undef fwrite
stock fwrite_utf8(File:handle, str[], bool:use_utf8 = false)
{
    new x=0;
    if(!handle) return 0;
    while(str[x] != EOS) {
    fputchar(handle, str[x], use_utf8);
        x++;
    }

    return x;
}

Then fwrite will be able to write in utf-8 characters.But it will crash on linux :S