Hi Junjie, > I have TOT of llvm and it builds 64-bit without issues on my 64-bit > ubuntu. My question is how to build 32-bit llvm on my 64-bit ubuntu ? > I've not found any configure options to specify that. as well as "gcc -m32" and "g++ -m32" you may want to configure with --build=i686-pc-linux-gnu Ciao, Duncan.