Hi, I built clang from the svn repository. It works fine, except when using -fsanitize=address during linking I get messages like /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/bits/stl_algobase.h:372: undefined reference to `__asan_memmove' Anybody has an idea what I did wrong ? Thanks Peter