To resolve the Bigendian not supported error in rAthena emulator in CentOS.Log in to Putty first. And install the following: sudo yum -y install gcc-c++sudo yum -y install centos-release-sclsudo yum -y install devtoolset-4-gcc* Input this command: nano /root/.bash_profile and add in a new line: export PATH=/opt/rh/devtoolset-4/root/usr/bin/:$PATH Then press CTRL + X key and then CTRL + Y key. Now, type this command to reboot the server: reboot Login to Putty and try to compile your server again.