[Bug preprocessor/51670] New: [4.7.0] conflicts with new declaration with 'C++' linkage

[Bug preprocessor/51670] New: [4.7.0] conflicts with new declaration with 'C++' linkage

[pashev.igor at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51670

             Bug #: 51670
           Summary: [4.7.0] conflicts with new declaration with 'C++'
                    linkage
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: preprocessor
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: pashev.igor@gmail.com


Created attachment 26174
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26174
Build log

G++ 4.7.0 (trunk from 20111219) compiler doesn't work on Solaris
(x86_64-pc-solaris2.11).

But G++ 4.6.2 does.

Steps to reproduce:

# /usr/gcc/4.7/bin/g++ test.cpp -o test # FAIL
# /usr/gcc/4.6/bin/g++ -m64  test.cpp -o test # WIN

Build log is attached. Trivial test program and preprocessed files are below.

[Bug preprocessor/51670] [4.7.0] conflicts with new declaration with 'C++' linkage

[pashev.igor at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51670

--- Comment #1 from Igor Pashev <pashev.igor at gmail dot com> 2011-12-23 23:47:20 UTC ---
Created attachment 26175
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26175
Trivial test program

[Bug preprocessor/51670] [4.7.0] conflicts with new declaration with 'C++' linkage

[pashev.igor at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51670

--- Comment #2 from Igor Pashev <pashev.igor at gmail dot com> 2011-12-23 23:48:01 UTC ---
Created attachment 26176
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26176
/usr/gcc/4.6/bin/g++ -m64  -E test.cpp -o test.46

[Bug preprocessor/51670] [4.7.0] conflicts with new declaration with 'C++' linkage

[pashev.igor at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51670

--- Comment #3 from Igor Pashev <pashev.igor at gmail dot com> 2011-12-23 23:48:35 UTC ---
Created attachment 26177
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26177
/usr/gcc/4.7/bin/g++ -E test.cpp -o test.47

[Bug preprocessor/51670] [4.7.0] conflicts with new declaration with 'C++' linkage

[pashev.igor at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51670

--- Comment #4 from Igor Pashev <pashev.igor at gmail dot com> 2011-12-23 23:49:12 UTC ---
Created attachment 26178
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26178
Diff of test.46 and test.47

[Bug preprocessor/51670] [4.7.0] conflicts with new declaration with 'C++' linkage

[pashev.igor at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51670

--- Comment #5 from Igor Pashev <pashev.igor at gmail dot com> 2011-12-23 23:51:31 UTC ---
Sorry, GCC 4.7 is installed in /usr, not in /usr/gcc/4.7

[Bug target/51670] [4.7.0] conflicts with new declaration with 'C++' linkage

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51670

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid
             Target|                            |x86_64-pc-solaris2.11
          Component|preprocessor                |target

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-23 23:53:05 UTC ---
This looks like a bug in Solaris's headers.

[Bug target/51670] [4.7.0] conflicts with new declaration with 'C++' linkage

[pashev.igor at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51670

--- Comment #7 from Igor Pashev <pashev.igor at gmail dot com> 2011-12-24 00:27:10 UTC ---
Created attachment 26179
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26179
Diff of macros

[Bug target/51670] [4.7.0] conflicts with new declaration with 'C++' linkage

[marc.glisse at normalesup dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51670

Marc Glisse <marc.glisse at normalesup dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |marc.glisse at normalesup
                   |                            |dot org

--- Comment #8 from Marc Glisse <marc.glisse at normalesup dot org> 2011-12-24 09:40:54 UTC ---
This is supposed to be handled by fixinclude in the solaris_cxx_linkage rule.
Can you try and see why it isn't applied?

[Bug target/51670] [4.7.0] conflicts with new declaration with 'C++' linkage

[pashev.igor at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51670

Igor Pashev <pashev.igor at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID

--- Comment #9 from Igor Pashev <pashev.igor at gmail dot com> 2011-12-24 18:39:49 UTC ---
(In reply to comment #8)
> This is supposed to be handled by fixinclude in the solaris_cxx_linkage rule.
> Can you try and see why it isn't applied?

Well, I'm a little confused.

Directory /usr/lib/gcc/x86_64-pc-solaris2.11/4.7/include-fixed was mostly
empty.
I run /usr/lib/gcc/x86_64-pc-solaris2.11/4.7/install-tools/mkheaders, and now
that directory is full on fixed headers.

Now g++ does work.


BTW GCC 4.6.2 in Solaris ships all possible fixed headers :-\