Cannot build with gcc-c++ 6.0.0

[hroncok]

For 2015.03-2:

Full build log: build.log
Versions of stuff installed: root.log

For master:

build.log.gz
root.log.gz

I think this is caused by gcc-c++ 6.0.0.

Error message 2015.03-2:

/usr/include/c++/6.0.0/type_traits:143:12: error: invalid use of incomplete type 'std::conditional<true, std::is_constructible<CGAL::Plane_3<CGAL::Simple_cartesian<double> >, CGAL::Plane_3<CGAL::Simple_cartesian<double> >&&>, std::is_constructible<CGAL::Sphere_3<CGAL::Simple_cartesian<double> >, CGAL::Sphere_3<CGAL::Simple_cartesian<double> >&&> >::type {aka struct std::is_constructible<CGAL::Plane_3<CGAL::Simple_cartesian<double> >, CGAL::Plane_3<CGAL::Simple_cartesian<double> >&&>}'
     struct __and_<_B1, _B2>
            ^~~~~~~~~~~~~~~~
/usr/include/c++/6.0.0/type_traits:1115:12: note: declaration of 'std::conditional<true, std::is_constructible<CGAL::Plane_3<CGAL::Simple_cartesian<double> >, CGAL::Plane_3<CGAL::Simple_cartesian<double> >&&>, std::is_constructible<CGAL::Sphere_3<CGAL::Simple_cartesian<double> >, CGAL::Sphere_3<CGAL::Simple_cartesian<double> >&&> >::type {aka struct std::is_constructible<CGAL::Plane_3<CGAL::Simple_cartesian<double> >, CGAL::Plane_3<CGAL::Simple_cartesian<double> >&&>}'
     struct is_constructible
            ^~~~~~~~~~~~~~~~
In file included from /usr/include/c++/6.0.0/bits/stl_algobase.h:64:0,
                 from /usr/include/c++/6.0.0/bits/stl_tree.h:63,
                 from /usr/include/c++/6.0.0/set:60,
                 from src/CGAL_workaround_Mark_bounded_volumes.h:27,
                 from src/cgal.h:23,
                 from src/cgalutils.h:3,
                 from src/cgalutils.cc:3:

For master:

...
                 from src/cgal.h:15,
                 from src/cgalutils.h:3,
                 from src/cgalutils.cc:6:

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[hroncok]

Reported to CGAL issue tracker as well as CGAL/cgal#726

[GilesBathgate]

Seems a bit unfair to report it to CGAL when the error is coming from CGAL_workaround_Mark_bounded_volumes.h which is not part of the CGAL project. (unless I am mistaken)

CGAL's version of Mark_bounded_volumes.h doesn't include

[hroncok]

Closed the CGAL issue.

[kintel]

I'm not sure why we wouldn't be allowed to store a Volume_handle in a set.
It looks similar to this bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65760

We could write a stand-alone minimal example storing a Volume_handle of a cube or smth. in a set (or any other container) and submit that to CGAL. Perhaps that opens some doors.

Submitting this as a gcc bug would require us to reproduce without CGAL, which might be a bit of work..

[kintel]

@hroncok Btw., do you know of any easy way to get a VM image with a minimal gcc-6 distro?

[GilesBathgate]

Just for reference CGAL_workaround_Mark_bounded_volumes.h

[hroncok]

@kintel Would Docker work? You can get the rawhide image. https://hub.docker.com/r/library/fedora/tags/

[hroncok]

Or https://fedoraproject.org/wiki/Releases/Rawhide#Nightly_images

[djdelorie]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70437

[hroncok]

This has been fixed in upstream gcc.

[t-paul]

Nice, thanks for the follow-up.