[Bug preprocessor/55115] [4.8/4.9/5 Regression] missing headers as fatal breaks cproto logic

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55115

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2
             Status|UNCONFIRMED                 |NEW
      Known to work|                            |4.4.5
           Keywords|                            |diagnostic
   Last reconfirmed|2012-10-29 00:00:00         |2015-04-09
                 CC|                            |jsm28 at gcc dot gnu.org
     Ever confirmed|0                           |1
            Summary|[>=4.5.0 regression]        |[4.8/4.9/5 Regression]
                   |missing headers as fatal    |missing headers as fatal
                   |breaks cproto logic         |breaks cproto logic
   Target Milestone|---                         |4.8.5
      Known to fail|                            |4.5.0, 5.0

--- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> ---
Caused by r145341 aka fix for PR15638, confirmed.  This was a deliberate
change,
but not for -E (well, you'd have different behavior for -save-temps ...).

We should either close this as WONTFIX or fix it ;)