Cross Compiling a different architechture

Hello, I am receiving a configuration and CC1 Errors when cross compiling ARM64 machine from a i386 version. Any help on correct cross compiling a architechture from a different machine. A weblink is also fine. Been trying the docs and some scripts did not work. Is there a method to compile all architectures at the same to save time? I have not been able to do that. TnR, Ganesh