[Bug c/52853] New: problem in stddef.h, Blender build fails

[montagne29 at wanadoo dot fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52853

             Bug #: 52853
           Summary: problem in stddef.h, Blender build fails
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: montagne29@wanadoo.fr


When trying to compile Blender (trunk) with new gcc-4.7, it fails with
following message:

[ 68%] Building CXX object
source/gameengine/VideoTexture/CMakeFiles/ge_videotex.dir/VideoFFmpeg.cpp.o
In file included from /usr/include/unistd.h:227:0,
                 from /usr/include/python3.2mu/Python.h:36,
                 from
/home/i7deb64/blender-2.5-svn/__work__/blender_src/source/gameengine/Expressions/KX_Python.h:47,
                 from
/home/i7deb64/blender-2.5-svn/__work__/blender_src/source/gameengine/Expressions/PyObjectPlus.h:43,
                 from
/home/i7deb64/blender-2.5-svn/__work__/blender_src/source/gameengine/VideoTexture/VideoBase.h:31,
                 from
/home/i7deb64/blender-2.5-svn/__work__/blender_src/source/gameengine/VideoTexture/VideoFFmpeg.h:69,
                 from
/home/i7deb64/blender-2.5-svn/__work__/blender_src/source/gameengine/VideoTexture/VideoFFmpeg.cpp:43:
/usr/lib/gcc/x86_64-linux-gnu/4.7/include/stddef.h:417:43: error: operator '&&'
has no right operand
In file included from /usr/include/signal.h:349:0,
                 from /usr/include/python3.2mu/pyfpe.h:129,
                 from /usr/include/python3.2mu/Python.h:146,
                 from
/home/i7deb64/blender-2.5-svn/__work__/blender_src/source/gameengine/Expressions/KX_Python.h:47,
                 from
/home/i7deb64/blender-2.5-svn/__work__/blender_src/source/gameengine/Expressions/PyObjectPlus.h:43,
                 from
/home/i7deb64/blender-2.5-svn/__work__/blender_src/source/gameengine/VideoTexture/VideoBase.h:31,
                 from
/home/i7deb64/blender-2.5-svn/__work__/blender_src/source/gameengine/VideoTexture/VideoFFmpeg.h:69,
                 from
/home/i7deb64/blender-2.5-svn/__work__/blender_src/source/gameengine/VideoTexture/VideoFFmpeg.cpp:43:
/usr/lib/gcc/x86_64-linux-gnu/4.7/include/stddef.h:417:43: error: operator '&&'
has no right operand


So it appears that in the stddef.h's line

#if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \
  || (defined(__cplusplus) && __cplusplus >= 201103L)

…when __cplusplus is not defined, that code is wrong (I guess…)???

Anyway, I can’t build Blender’s GE currently :)

Notes:
*I’m using Debian testing package (4.7.0-1)
*Other people have encountered the same problem with various distributions (see
http://lists.blender.org/pipermail/bf-committers/2012-March/035990.html )