Package: libcgal-dev
Version: 4.11-2
Severity: grave
Justification: renders package unusable
Tags: upstream newcomer
Dear Maintainer,
Boost-1.62 fails to compile the following c++ file :
g++ pair_tst.cc -o pair_tst.cc
in sid and buster (testing) with g++ 7.2.
The output is:
In file included from
/usr/include/boost/container/detail/flat_tree.hpp:29:0,
from /usr/include/boost/container/flat_map.hpp:29,
from pair_tst.cc:16:
/usr/include/boost/container/detail/pair.hpp:433:8: error: partial
specialization of ‘struct boost::is_enum<std::pair<_T1, _T2> >’ after
instantiation of ‘struct boost::is_enum<std::pair<int, int> >’ [-fpermissive]
struct is_enum< ::std::pair<T, U> >
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
See the "pair_tst.cc" file in attachment for reproducing this bug.
This bug actually causes some debian package build to fail in sid
and testing (see e.g. bug: #883987 ).
The bug has already be identified in the upstream version of Boost :
https://svn.boost.org/trac10/ticket/12534
and it is now fixed in boost-dev 1.65:
https://github.com/boostorg/container/commit/5e4a107e82ab3281688311d22d2bfc2fddcf84a3
The fix simply consists of removing from line 431 to 460
in file include/boost/container/detail/pair.hpp
See also the "pair_tst.patch" file in attachment.
Could you please includes this patch in the debianization of
the Boost package ?
Best regards,
Pierre Saramito
-- System Information:
Debian Release: buster/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.13.0-1-amd64 (SMP w/32 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8),
LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages libcgal-dev depends on:
ii libboost-dev 1.62.0.1
ii libboost-program-options-dev 1.62.0.1
ii libboost-system-dev 1.62.0.1
ii libboost-thread-dev 1.62.0.1
ii libcgal13 4.11-2
ii libgmp-dev [libgmp10-dev] 2:6.1.2+dfsg-1.1
ii libmpfr-dev 3.1.6-1
ii zlib1g-dev 1:1.2.8.dfsg-5
libcgal-dev recommends no packages.
Versions of packages libcgal-dev suggests:
pn libmpfi-dev <none>
pn libntl-dev <none>
pn libtbb-dev <none>
-- no debconf information
--
pierre.saram...@imag.fr
Directeur de Recherche CNRS
Laboratoire Jean Kuntzmann, Grenoble, France
http://ljk.imag.fr/membres/Pierre.Saramito// bug description
// https://svn.boost.org/trac10/ticket/12534
// and its fix in boost-dev 1.65:
// https://github.com/boostorg/container/commit/5e4a107e82ab3281688311d22d2bfc2fddcf84a3
// i.e. remove from line 431 to 460 in include/boost/container/detail/pair.hpp
#undef FIX_BUG
#ifdef FIX_BUG
#include <boost/container/map.hpp>
#endif // FIX_BUG
#include <boost/type_traits.hpp>
static const bool is_enum = boost::is_enum<std::pair<int, int> >::value;
#include <boost/container/flat_map.hpp>
boost::container::flat_map<int, int> m;
int main() {}
*** /usr/include/boost/container/detail/pair.hpp.orig Tue Dec 12 12:15:26 2017
--- /usr/include/boost/container/detail/pair.hpp Tue Dec 12 12:41:22 2017
***************
*** 416,451 ****
} //namespace container_detail {
} //namespace container {
-
- //Without this specialization recursive flat_(multi)map instantiation fails
- //because is_enum needs to instantiate the recursive pair, leading to a compilation error).
- //This breaks the cycle clearly stating that pair is not an enum avoiding any instantiation.
- template<class T>
- struct is_enum;
-
- template<class T, class U>
- struct is_enum< ::boost::container::container_detail::pair<T, U> >
- {
- static const bool value = false;
- };
-
- template<class T, class U>
- struct is_enum< ::std::pair<T, U> >
- {
- static const bool value = false;
- };
-
- template <class T>
- struct is_class;
-
- //This specialization is needed to avoid instantiation of pair in
- //is_class, and allow recursive maps.
- template <class T1, class T2>
- struct is_class< ::boost::container::container_detail::pair<T1, T2> >
- {
- static const bool value = true;
- };
-
#ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
template<class T1, class T2>
--- 416,421 ----
