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devel/ncurses fails to build (C++ issue)
Hi!
When I try to build devel/ncurses from pkgsrc-current on Fedora Linux
(with gcc 15.1.1), I get a whole bunch of C++ errors in the C++ bindings:
make[1]: Entering directory
'/home/bsiegert/pkgsrc/devel/ncurses/work/ncurses-6.5/c++'
libtool --tag=CXX --silent --mode=compile c++ -DHAVE_CONFIG_H
-DBUILDING_NCURSES_CXX -I../c++ -I. -I../include -D_DEFAULT_SOURCE
-D_XOPEN_SOURCE=600 -DNDEBUG -O2 -c ../c++/cursesf.cc -o
../obj_lo/cursesf.lo
In file included from /usr/include/c++/15/bits/move.h:37,
from /usr/include/c++/15/bits/exception_ptr.h:41,
from /usr/include/c++/15/exception:168,
from /usr/include/c++/15/ios:43,
from /usr/include/c++/15/bits/ostream.h:43,
from /usr/include/c++/15/ostream:42,
from /usr/include/c++/15/iostream:43,
from ../c++/etip.h:351,
from ../c++/cursesw.h:52,
from ../c++/cursesp.h:41,
from ../c++/cursesf.h:41,
from ../c++/cursesf.cc:36:
/usr/include/c++/15/type_traits:360:12: error: redefinition of 'struct
std::__is_integral_helper<unsigned char>'
360 | struct __is_integral_helper<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15/type_traits:348:12: note: previous definition of
'struct std::__is_integral_helper<unsigned char>'
348 | struct __is_integral_helper<bool>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15/bits/exception_ptr.h: In member function
'std::__exception_ptr::exception_ptr::operator NCURSES_BOOL() const':
/usr/include/c++/15/bits/exception_ptr.h:162:16: error: invalid
conversion from 'void*' to 'NCURSES_BOOL' {aka 'unsigned char'}
[-fpermissive]
162 | { return _M_exception_object; }
| ^~~~~~~~~~~~~~~~~~~
| |
| void*
In file included from /usr/include/c++/15/exception:169:
/usr/include/c++/15/bits/nested_exception.h: In member function 'void
std::nested_exception::rethrow_nested() const':
/usr/include/c++/15/bits/nested_exception.h:78:11: error: invalid
user-defined conversion from 'const std::__exception_ptr::exception_ptr'
to 'bool' [-fpermissive]
78 | if (_M_ptr)
| ^~~~~~
/usr/include/c++/15/bits/exception_ptr.h:161:16: note: candidate is:
'std::__exception_ptr::exception_ptr::operator NCURSES_BOOL() const'
(near match)
161 | explicit operator bool() const noexcept
| ^~~~~~~~
/usr/include/c++/15/bits/exception_ptr.h:161:16: note: return type
'NCURSES_BOOL' {aka 'unsigned char'} of explicit conversion function
cannot be converted to 'bool' with a qualification conversion
[...]
Any ideas? I ran into this during a pkgrrxx run, but it could have been
a gcc update in Fedora.
--
Benny
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