[Bug c++/32368] New: warnings from system headers not supressed.

[Bug c++/32368] New: warnings from system headers not supressed.

[pluto at agmk dot net]

$ g++ -isystem sys x.cpp -c -Wall -O
sys/x.hpp: In function 'int main()':
sys/x.hpp:7: warning: 'i' is used uninitialized in this function
sys/x.hpp:6: note: 'i' was declared here

i ran into this during playing with new boost libraries.


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           Summary: warnings from system headers not supressed.
           Product: gcc
           Version: 4.1.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pluto at agmk dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32368

[Bug c++/32368] warnings from system headers not supressed.

[pluto at agmk dot net]

------- Comment #1 from pluto at agmk dot net  2007-06-16 17:20 -------
Created an attachment (id=13714)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13714&action=view)
testcase


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32368

[Bug c++/32368] warnings from system headers not supressed.

[pcarlini at suse dot de]

------- Comment #2 from pcarlini at suse dot de  2007-06-16 19:19 -------
At variance with c++/32256, this one apparently happens as "C" code too...
Probably should be not categorized as C++-only...


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32368

[Bug c++/32368] warnings from system headers not supressed.

[pluto at agmk dot net]

------- Comment #3 from pluto at agmk dot net  2007-06-19 06:44 -------
(In reply to comment #2)
> At variance with c++/32256, this one apparently happens as "C" code too...
> Probably should be not categorized as C++-only...

these little bugs (PR32368, PR32256) are treated as blockers
by people having `-Wall -Werror` in theirs projects.
could we fix this issue easily and quickly in 4.x?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32368

[Bug c++/32368] warnings from system headers not suppressed.

[tromey at gcc dot gnu dot org]

------- Comment #4 from tromey at gcc dot gnu dot org  2007-11-02 21:02 -------
Testing a patch.


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tromey at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-11-02 21:02:44
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32368

[Bug c++/32368] warnings from system headers not suppressed.

[tromey at gcc dot gnu dot org]

-- 

tromey at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |tromey at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2007-11-02 21:02:44         |2007-11-02 21:02:56
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32368

[Bug c++/32368] warnings from system headers not suppressed.

[tromey at gcc dot gnu dot org]

------- Comment #5 from tromey at gcc dot gnu dot org  2007-11-06 15:57 -------
Subject: Bug 32368

Author: tromey
Date: Tue Nov  6 15:57:02 2007
New Revision: 129936

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129936
Log:
gcc
        PR c++/32256, PR c++/32368:
        * function.c (saved_in_system_header): New global.
        (push_cfun): Save in_system_header.
        (pop_cfun): Restore in_system_header.
        (push_struct_function): Save in_system_header.
gcc/testsuite
        PR c++/32368:
        * g++.dg/warn/pragma-system_header3.h: New.
        * g++.dg/warn/pragma-system_header3.C: New.

        PR c++/32256:
        * g++.dg/warn/pragma-system_header4.C: New.
        * g++.dg/warn/pragma-system_header4.h: New.

Added:
    trunk/gcc/testsuite/g++.dg/warn/pragma-system_header3.C
    trunk/gcc/testsuite/g++.dg/warn/pragma-system_header3.h
    trunk/gcc/testsuite/g++.dg/warn/pragma-system_header4.C
    trunk/gcc/testsuite/g++.dg/warn/pragma-system_header4.h
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/function.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32368

[Bug c++/32368] warnings from system headers not suppressed.

[tromey at gcc dot gnu dot org]

------- Comment #6 from tromey at gcc dot gnu dot org  2007-11-06 16:01 -------
Fixed on trunk.


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tromey at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |4.3.0
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32368

[Bug c++/32368] warnings from system headers not suppressed.

[rguenth at gcc dot gnu dot org]

------- Comment #7 from rguenth at gcc dot gnu dot org  2008-03-14 16:51 -------
We have one regression open for this.  Let's close this as fixed.


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rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
           Keywords|                            |diagnostic
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32368