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Build error.

To: KiCad Developers <kicad-developers@xxxxxxxxxxxxxxxxxxx>
From: Wayne Stambaugh <stambaughw@xxxxxxxxx>
Date: Sat, 27 Feb 2021 07:47:42 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1
Looks like a commit in the last 24 hours broke KiCad builds with Python
enabled.  Here is the build error on Linux using gcc 9.3.0.

In file included from
/usr/include/x86_64-linux-gnu/c++/9/bits/c++allocator.h:33,
                 from /usr/include/c++/9/bits/allocator.h:46,
                 from /usr/include/c++/9/string:41,
                 from /usr/include/c++/9/stdexcept:39,
                 from
/home/wayne/build/kicad/trunk-debug-gtk3-phoenix-occt/pcbnew/pcbnew_wrap.cxx:3006:
/usr/include/c++/9/ext/new_allocator.h: In instantiation of ‘void
__gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up =
std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> >; _Args = {const
std::pair<ZONE* const, std::unique_ptr<DRC_RTREE,
std::default_delete<DRC_RTREE> > >&}; _Tp =
std::_Rb_tree_node<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> > >]’:
/usr/include/c++/9/bits/alloc_traits.h:482:2:   required from ‘static
void std::allocator_traits<std::allocator<_CharT>
>::construct(std::allocator_traits<std::allocator<_CharT>
>::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<ZONE*
const, std::unique_ptr<DRC_RTREE> >; _Args = {const std::pair<ZONE*
const, std::unique_ptr<DRC_RTREE, std::default_delete<DRC_RTREE> > >&};
_Tp = std::_Rb_tree_node<std::pair<ZONE* const,
std::unique_ptr<DRC_RTREE> > >;
std::allocator_traits<std::allocator<_CharT> >::allocator_type =
std::allocator<std::_Rb_tree_node<std::pair<ZONE* const,
std::unique_ptr<DRC_RTREE> > > >]’
/usr/include/c++/9/bits/stl_tree.h:614:32:   required from ‘void
std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare,
_Alloc>::_M_construct_node(std::_Rb_tree<_Key, _Val, _KeyOfValue,
_Compare, _Alloc>::_Link_type, _Args&& ...) [with _Args = {const
std::pair<ZONE* const, std::unique_ptr<DRC_RTREE,
std::default_delete<DRC_RTREE> > >&}; _Key = ZONE*; _Val =
std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> >; _KeyOfValue =
std::_Select1st<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> > >;
_Compare = std::less<ZONE*>; _Alloc = std::allocator<std::pair<ZONE*
const, std::unique_ptr<DRC_RTREE> > >; std::_Rb_tree<_Key, _Val,
_KeyOfValue, _Compare, _Alloc>::_Link_type =
std::_Rb_tree_node<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> > >*]’
/usr/include/c++/9/bits/stl_tree.h:487:3:   required from
‘std::_Rb_tree_node<_Val>* std::_Rb_tree<_Key, _Val, _KeyOfValue,
_Compare, _Alloc>::_Reuse_or_alloc_node::operator()(_Arg&&) [with _Arg =
const std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> >&; _Key =
ZONE*; _Val = std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> >;
_KeyOfValue = std::_Select1st<std::pair<ZONE* const,
std::unique_ptr<DRC_RTREE> > >; _Compare = std::less<ZONE*>; _Alloc =
std::allocator<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> > >;
std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_Link_type =
std::_Rb_tree_node<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> > >*]’
/usr/include/c++/9/bits/stl_tree.h:658:33:   required from
‘std::_Rb_tree_node<_Val>* std::_Rb_tree<_Key, _Val, _KeyOfValue,
_Compare, _Alloc>::_M_clone_node(std::_Rb_tree<_Key, _Val, _KeyOfValue,
_Compare, _Alloc>::_Const_Link_type, _NodeGen&) [with _NodeGen =
std::_Rb_tree<ZONE*, std::pair<ZONE* const, std::unique_ptr<DRC_RTREE>
>, std::_Select1st<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> >
>, std::less<ZONE*>, std::allocator<std::pair<ZONE* const,
std::unique_ptr<DRC_RTREE> > > >::_Reuse_or_alloc_node; _Key = ZONE*;
_Val = std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> >; _KeyOfValue
= std::_Select1st<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> > >;
_Compare = std::less<ZONE*>; _Alloc = std::allocator<std::pair<ZONE*
const, std::unique_ptr<DRC_RTREE> > >; std::_Rb_tree<_Key, _Val,
_KeyOfValue, _Compare, _Alloc>::_Link_type =
std::_Rb_tree_node<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> >
>*; std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare,
_Alloc>::_Const_Link_type = const std::_Rb_tree_node<std::pair<ZONE*
const, std::unique_ptr<DRC_RTREE> > >*]’
/usr/include/c++/9/bits/stl_tree.h:1875:13:   required from
‘std::_Rb_tree_node<_Val>* std::_Rb_tree<_Key, _Val, _KeyOfValue,
_Compare, _Alloc>::_M_copy(std::_Rb_tree<_Key, _Val, _KeyOfValue,
_Compare, _Alloc>::_Const_Link_type, std::_Rb_tree<_Key, _Val,
_KeyOfValue, _Compare, _Alloc>::_Base_ptr, _NodeGen&) [with _NodeGen =
std::_Rb_tree<ZONE*, std::pair<ZONE* const, std::unique_ptr<DRC_RTREE>
>, std::_Select1st<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> >
>, std::less<ZONE*>, std::allocator<std::pair<ZONE* const,
std::unique_ptr<DRC_RTREE> > > >::_Reuse_or_alloc_node; _Key = ZONE*;
_Val = std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> >; _KeyOfValue
= std::_Select1st<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> > >;
_Compare = std::less<ZONE*>; _Alloc = std::allocator<std::pair<ZONE*
const, std::unique_ptr<DRC_RTREE> > >; std::_Rb_tree<_Key, _Val,
_KeyOfValue, _Compare, _Alloc>::_Link_type =
std::_Rb_tree_node<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> >
>*; std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare,
_Alloc>::_Const_Link_type = const std::_Rb_tree_node<std::pair<ZONE*
const, std::unique_ptr<DRC_RTREE> > >*; std::_Rb_tree<_Key, _Val,
_KeyOfValue, _Compare, _Alloc>::_Base_ptr = std::_Rb_tree_node_base*]’
/usr/include/c++/9/bits/stl_tree.h:901:15:   required from
‘std::_Rb_tree_node<_Val>* std::_Rb_tree<_Key, _Val, _KeyOfValue,
_Compare, _Alloc>::_M_copy(const std::_Rb_tree<_Key, _Val, _KeyOfValue,
_Compare, _Alloc>&, _NodeGen&) [with _NodeGen = std::_Rb_tree<ZONE*,
std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> >,
std::_Select1st<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> > >,
std::less<ZONE*>, std::allocator<std::pair<ZONE* const,
std::unique_ptr<DRC_RTREE> > > >::_Reuse_or_alloc_node; _Key = ZONE*;
_Val = std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> >; _KeyOfValue
= std::_Select1st<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> > >;
_Compare = std::less<ZONE*>; _Alloc = std::allocator<std::pair<ZONE*
const, std::unique_ptr<DRC_RTREE> > >; std::_Rb_tree<_Key, _Val,
_KeyOfValue, _Compare, _Alloc>::_Link_type =
std::_Rb_tree_node<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> > >*]’
/usr/include/c++/9/bits/stl_tree.h:1783:16:   required from
‘std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>&
std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare,
_Alloc>::operator=(const std::_Rb_tree<_Key, _Val, _KeyOfValue,
_Compare, _Alloc>&) [with _Key = ZONE*; _Val = std::pair<ZONE* const,
std::unique_ptr<DRC_RTREE> >; _KeyOfValue =
std::_Select1st<std::pair<ZONE* const, std::unique_ptr<DRC_RTREE> > >;
_Compare = std::less<ZONE*>; _Alloc = std::allocator<std::pair<ZONE*
const, std::unique_ptr<DRC_RTREE> > >]’
/usr/include/c++/9/bits/stl_map.h:100:11:   required from here
/usr/include/c++/9/ext/new_allocator.h:145:20: error: use of deleted
function ‘constexpr std::pair<_T1, _T2>::pair(const std::pair<_T1,
_T2>&) [with _T1 = ZONE* const; _T2 = std::unique_ptr<DRC_RTREE>]’
  145 |  noexcept(noexcept(::new((void *)__p)
      |                    ^~~~~~~~~~~~~~~~~~
  146 |        _Up(std::forward<_Args>(__args)...)))
      |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/9/bits/stl_algobase.h:64,
                 from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/string:40,
                 from /usr/include/c++/9/stdexcept:39,
                 from
/home/wayne/build/kicad/trunk-debug-gtk3-phoenix-occt/pcbnew/pcbnew_wrap.cxx:3006:
/usr/include/c++/9/bits/stl_pair.h:303:17: note: ‘constexpr
std::pair<_T1, _T2>::pair(const std::pair<_T1, _T2>&) [with _T1 = ZONE*
const; _T2 = std::unique_ptr<DRC_RTREE>]’ is implicitly deleted because
the default definition would be ill-formed:
  303 |       constexpr pair(const pair&) = default;
      |                 ^~~~
/usr/include/c++/9/bits/stl_pair.h:303:17: error: use of deleted
function ‘std::unique_ptr<_Tp, _Dp>::unique_ptr(const
std::unique_ptr<_Tp, _Dp>&) [with _Tp = DRC_RTREE; _Dp =
std::default_delete<DRC_RTREE>]’
In file included from /usr/include/c++/9/memory:80,
                 from /home/wayne/src/kicad-trunk/include/macros_swig.h:38,
                 from
/home/wayne/build/kicad/trunk-debug-gtk3-phoenix-occt/pcbnew/pcbnew_wrap.cxx:5125:
/usr/include/c++/9/bits/unique_ptr.h:414:7: note: declared here
  414 |       unique_ptr(const unique_ptr&) = delete;
      |       ^~~~~~~~~~
cc1plus: warning: unrecognized command line option ‘-Wno-everything’
make[2]: ***
[pcbnew/CMakeFiles/pcbnew_kiface_objects.dir/build.make:3724:
pcbnew/CMakeFiles/pcbnew_kiface_objects.dir/pcbnew_wrap.cxx.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:3366:
pcbnew/CMakeFiles/pcbnew_kiface_objects.dir/all] Error 2
make: *** [Makefile:163: all] Error 2
Follow ups

Re: Build error.
From: Jon Evans, 2021-02-27