http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55374
--- Comment #7 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> 2012-12-20 19:55:32 UTC --- Thanks now bootstrap completes. It seems to me that libgfortran is not built with -fsanitize=address despite --with-build-config=bootstrap-asan Is there a way to make that happen ?