[Bug tree-optimization/60174] [4.9 regression] ICE on ACATS cc3305a

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60174

--- Comment #14 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Unfortunately that's always telling me
> 
> error: "gnat1drv.adb" must be recompiled ("system.ads" has been modified)
> error: "s-stalib.adb" must be recompiled ("system.ads" has been modified)
> error: "a-except.adb" must be recompiled ("system.ads" has been modified)

I don't see how this can happen if you strictly follow the guidelines (when I
write "compile", I mean issue the command line just below).