https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69650
--- Comment #41 from Roger Orr <rogero at howzatt dot demon.co.uk> --- I have seen the message before: for example from a build with revision line-map.c: file "/usr/include/asm/sockios.h" left but not entered I've only noticed it with builds from gcc-trunk, which I tested with back in Dec/Jan. I saw this message from some compilation but it seemed benign... I have not seen this message with builds from gcc 5.3.0 and before, but it is possible I've simply not noticed as it does gets a bit buried in the build logs.
