http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59900 --- Comment #1 from Cameron MacMinn <cam888eron at yahoo dot com> --- Created attachment 31913 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31913&action=edit preprocessed file 2nd needs 2 source files, hence 2 .ii preprocessed files