Hello, Willow> I just tried ./configure and make install. Configure works file, make > install leads to the above error.Sorry, no idea. Actually, never seen this before. You might try these instructions, they worked perfectly: http://blogs.tedneward.com/2008/02/24/Building+LLVM+On+Windows+Using+MinGW32.asp x PS: And I suggest not to use vista as host system. -- WBR, Anton Korobeynikov