Install the latest version of mips64el-linux-gnuabi64-gnatxref-5 in Ubuntu from terminal. To install the mips64el-linux-gnuabi64-gnatxref-5 just copy the above command for your OS and run into terminal. After you run the command it will grab the latest version of mips64el-linux-gnuabi64-gnatxref-5 from the respository and install it in your computer/server.