Problem: You want to use the LLVM Gold linker plugin but LLVMgold.so can’t be found. Solution You should compile and install the LLVM gold plugin by yourself. This guide has been tested on Ubuntu 12.04 and Ubuntu 12.10, but it should work on most Linux-based systems provided that you replace the package-manager-specific commands appropriately. A more unspecific and overcomplex, but official guide