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#1 2026-02-08 21:06:44
- Anjo1920
- Member
- Registered: 2026-02-08
- Posts: 3
[SOLVED] problem with compiing ncurses
hello, i have a problem with compiling the ncurses library. i do not know what is going on so im giving out the full error thingy
here's the full error:
In file included from /usr/include/c++/15.2.1/bits/move.h:37,
from /usr/include/c++/15.2.1/bits/exception_ptr.h:41,
from /usr/include/c++/15.2.1/exception:168,
from /usr/include/c++/15.2.1/ios:43,
from /usr/include/c++/15.2.1/bits/ostream.h:43,
from /usr/include/c++/15.2.1/ostream:42,
from /usr/include/c++/15.2.1/iostream:43,
from ../c++/etip.h:351,
from ../../ncurses-6.5/c++/cursesw.h:52,
from ../../ncurses-6.5/c++/cursslk.h:41,
from ../../ncurses-6.5/c++/cursesapp.h:40,
from ../../ncurses-6.5/c++/cursesmain.cc:36:
/usr/include/c++/15.2.1/type_traits:361:12: error: redefinition of ‘struct std::__is_integral_helper<unsigned char>’
361 | struct __is_integral_helper<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/move.h:37,
from /usr/include/c++/15.2.1/bits/exception_ptr.h:41,
from /usr/include/c++/15.2.1/exception:168,
from /usr/include/c++/15.2.1/ios:43,
from /usr/include/c++/15.2.1/bits/ostream.h:43,
from /usr/include/c++/15.2.1/ostream:42,
from /usr/include/c++/15.2.1/iostream:43,
from ../c++/etip.h:351,
from ../../ncurses-6.5/c++/cursesw.h:52,
from ../../ncurses-6.5/c++/cursslk.h:41,
from ../../ncurses-6.5/c++/cursslk.cc:36:
/usr/include/c++/15.2.1/type_traits:361:12: error: redefinition of ‘struct std::__is_integral_helper<unsigned char>’
361 | struct __is_integral_helper<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/type_traits:349:12: note: previous definition of ‘struct std::__is_integral_helper<unsigned char>’
349 | struct __is_integral_helper<bool>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/type_traits:349:12: note: previous definition of ‘struct std::__is_integral_helper<unsigned char>’
349 | struct __is_integral_helper<bool>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/move.h:37,
from /usr/include/c++/15.2.1/bits/exception_ptr.h:41,
from /usr/include/c++/15.2.1/exception:168,
from /usr/include/c++/15.2.1/ios:43,
from /usr/include/c++/15.2.1/bits/ostream.h:43,
from /usr/include/c++/15.2.1/ostream:42,
from /usr/include/c++/15.2.1/iostream:43,
from ../c++/etip.h:351,
from ../../ncurses-6.5/c++/cursesw.h:52,
from ../../ncurses-6.5/c++/cursslk.h:41,
from ../../ncurses-6.5/c++/cursesapp.h:40,
from ../../ncurses-6.5/c++/cursesapp.cc:37:
/usr/include/c++/15.2.1/type_traits:361:12: error: redefinition of ‘struct std::__is_integral_helper<unsigned char>’
361 | struct __is_integral_helper<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/type_traits:349:12: note: previous definition of ‘struct std::__is_integral_helper<unsigned char>’
349 | struct __is_integral_helper<bool>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/move.h:37,
from /usr/include/c++/15.2.1/bits/exception_ptr.h:41,
from /usr/include/c++/15.2.1/exception:168,
from /usr/include/c++/15.2.1/ios:43,
from /usr/include/c++/15.2.1/bits/ostream.h:43,
from /usr/include/c++/15.2.1/ostream:42,
from /usr/include/c++/15.2.1/iostream:43,
from ../c++/etip.h:351,
from ../../ncurses-6.5/c++/cursesw.h:52,
from ../../ncurses-6.5/c++/cursesp.h:41,
from ../../ncurses-6.5/c++/cursesm.h:40,
from ../../ncurses-6.5/c++/cursesm.cc:36:
/usr/include/c++/15.2.1/type_traits:361:12: error: redefinition of ‘struct std::__is_integral_helper<unsigned char>’
361 | struct __is_integral_helper<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/type_traits:349:12: note: previous definition of ‘struct std::__is_integral_helper<unsigned char>’
349 | struct __is_integral_helper<bool>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/move.h:37,
from /usr/include/c++/15.2.1/bits/exception_ptr.h:41,
from /usr/include/c++/15.2.1/exception:168,
from /usr/include/c++/15.2.1/ios:43,
from /usr/include/c++/15.2.1/bits/ostream.h:43,
from /usr/include/c++/15.2.1/ostream:42,
from /usr/include/c++/15.2.1/iostream:43,
from ../c++/etip.h:351,
from ../../ncurses-6.5/c++/cursesw.h:52,
from ../../ncurses-6.5/c++/cursesw.cc:44:
/usr/include/c++/15.2.1/type_traits:361:12: error: redefinition of ‘struct std::__is_integral_helper<unsigned char>’
361 | struct __is_integral_helper<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/type_traits:349:12: note: previous definition of ‘struct std::__is_integral_helper<unsigned char>’
349 | struct __is_integral_helper<bool>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/move.h:37,
from /usr/include/c++/15.2.1/bits/exception_ptr.h:41,
from /usr/include/c++/15.2.1/exception:168,
from /usr/include/c++/15.2.1/ios:43,
from /usr/include/c++/15.2.1/bits/ostream.h:43,
from /usr/include/c++/15.2.1/ostream:42,
from /usr/include/c++/15.2.1/iostream:43,
from ../c++/etip.h:351,
from ../../ncurses-6.5/c++/cursesw.h:52,
from ../../ncurses-6.5/c++/cursespad.cc:37:
/usr/include/c++/15.2.1/type_traits:361:12: error: redefinition of ‘struct std::__is_integral_helper<unsigned char>’
361 | struct __is_integral_helper<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/type_traits:349:12: note: previous definition of ‘struct std::__is_integral_helper<unsigned char>’
349 | struct __is_integral_helper<bool>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/exception_ptr.h: In member function ‘std::__exception_ptr::exception_ptr::operator NCURSES_BOOL() const’:
/usr/include/c++/15.2.1/bits/exception_ptr.h:162:16: error: invalid conversion from ‘void*’ to ‘NCURSES_BOOL’ {aka ‘unsigned char’} [-fpermissive]
162 | { return _M_exception_object; }
| ^~~~~~~~~~~~~~~~~~~
| |
| void*
/usr/include/c++/15.2.1/bits/exception_ptr.h: In member function ‘std::__exception_ptr::exception_ptr::operator NCURSES_BOOL() const’:
/usr/include/c++/15.2.1/bits/exception_ptr.h:162:16: error: invalid conversion from ‘void*’ to ‘NCURSES_BOOL’ {aka ‘unsigned char’} [-fpermissive]
162 | { return _M_exception_object; }
| ^~~~~~~~~~~~~~~~~~~
| |
| void*
/usr/include/c++/15.2.1/bits/exception_ptr.h: In member function ‘std::__exception_ptr::exception_ptr::operator NCURSES_BOOL() const’:
/usr/include/c++/15.2.1/bits/exception_ptr.h:162:16: error: invalid conversion from ‘void*’ to ‘NCURSES_BOOL’ {aka ‘unsigned char’} [-fpermissive]
162 | { return _M_exception_object; }
| ^~~~~~~~~~~~~~~~~~~
| |
| void*
/usr/include/c++/15.2.1/bits/exception_ptr.h: In member function ‘std::__exception_ptr::exception_ptr::operator NCURSES_BOOL() const’:
/usr/include/c++/15.2.1/bits/exception_ptr.h:162:16: error: invalid conversion from ‘void*’ to ‘NCURSES_BOOL’ {aka ‘unsigned char’} [-fpermissive]
162 | { return _M_exception_object; }
| ^~~~~~~~~~~~~~~~~~~
| |
| void*
/usr/include/c++/15.2.1/bits/exception_ptr.h: In member function ‘std::__exception_ptr::exception_ptr::operator NCURSES_BOOL() const’:
/usr/include/c++/15.2.1/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++/15.2.1/exception:169:
/usr/include/c++/15.2.1/bits/nested_exception.h: In member function ‘void std::nested_exception::rethrow_nested() const’:
/usr/include/c++/15.2.1/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++/15.2.1/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
| ^~~~~~~~
In file included from /usr/include/c++/15.2.1/exception:169:
/usr/include/c++/15.2.1/bits/nested_exception.h: In member function ‘void std::nested_exception::rethrow_nested() const’:
/usr/include/c++/15.2.1/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++/15.2.1/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
In file included from /usr/include/c++/15.2.1/exception:169:
/usr/include/c++/15.2.1/bits/nested_exception.h: In member function ‘void std::nested_exception::rethrow_nested() const’:
/usr/include/c++/15.2.1/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++/15.2.1/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
| ^~~~~~~~
In file included from /usr/include/c++/15.2.1/exception:169:
/usr/include/c++/15.2.1/bits/nested_exception.h: In member function ‘void std::nested_exception::rethrow_nested() const’:
/usr/include/c++/15.2.1/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++/15.2.1/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
/usr/include/c++/15.2.1/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++/15.2.1/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++/15.2.1/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
/usr/include/c++/15.2.1/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
In file included from /usr/include/c++/15.2.1/exception:169:
/usr/include/c++/15.2.1/bits/nested_exception.h: In member function ‘void std::nested_exception::rethrow_nested() const’:
/usr/include/c++/15.2.1/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++/15.2.1/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++/15.2.1/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
/usr/include/c++/15.2.1/bits/exception_ptr.h: In member function ‘std::__exception_ptr::exception_ptr::operator NCURSES_BOOL() const’:
/usr/include/c++/15.2.1/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++/15.2.1/exception:169:
/usr/include/c++/15.2.1/bits/nested_exception.h: In member function ‘void std::nested_exception::rethrow_nested() const’:
/usr/include/c++/15.2.1/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++/15.2.1/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++/15.2.1/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
In file included from /usr/include/c++/15.2.1/string:46,
from /usr/include/c++/15.2.1/bits/locale_classes.h:42,
from /usr/include/c++/15.2.1/bits/ios_base.h:43,
from /usr/include/c++/15.2.1/ios:46:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h: At global scope:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:151:12: error: redefinition of ‘struct std::__is_integer<unsigned char>’
151 | struct __is_integer<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:130:12: note: previous definition of ‘struct std::__is_integer<unsigned char>’
130 | struct __is_integer<bool>
| ^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/string:46,
from /usr/include/c++/15.2.1/bits/locale_classes.h:42,
from /usr/include/c++/15.2.1/bits/ios_base.h:43,
from /usr/include/c++/15.2.1/ios:46:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h: At global scope:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:151:12: error: redefinition of ‘struct std::__is_integer<unsigned char>’
151 | struct __is_integer<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:130:12: note: previous definition of ‘struct std::__is_integer<unsigned char>’
130 | struct __is_integer<bool>
| ^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/string:46,
from /usr/include/c++/15.2.1/bits/locale_classes.h:42,
from /usr/include/c++/15.2.1/bits/ios_base.h:43,
from /usr/include/c++/15.2.1/ios:46:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h: At global scope:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:151:12: error: redefinition of ‘struct std::__is_integer<unsigned char>’
151 | struct __is_integer<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:130:12: note: previous definition of ‘struct std::__is_integer<unsigned char>’
130 | struct __is_integer<bool>
| ^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/string:46,
from /usr/include/c++/15.2.1/bits/locale_classes.h:42,
from /usr/include/c++/15.2.1/bits/ios_base.h:43,
from /usr/include/c++/15.2.1/ios:46:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h: At global scope:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:151:12: error: redefinition of ‘struct std::__is_integer<unsigned char>’
151 | struct __is_integer<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:130:12: note: previous definition of ‘struct std::__is_integer<unsigned char>’
130 | struct __is_integer<bool>
| ^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/string:46,
from /usr/include/c++/15.2.1/bits/locale_classes.h:42,
from /usr/include/c++/15.2.1/bits/ios_base.h:43,
from /usr/include/c++/15.2.1/ios:46:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h: At global scope:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:151:12: error: redefinition of ‘struct std::__is_integer<unsigned char>’
151 | struct __is_integer<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:130:12: note: previous definition of ‘struct std::__is_integer<unsigned char>’
130 | struct __is_integer<bool>
| ^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/string:46,
from /usr/include/c++/15.2.1/bits/locale_classes.h:42,
from /usr/include/c++/15.2.1/bits/ios_base.h:43,
from /usr/include/c++/15.2.1/ios:46:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h: At global scope:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:151:12: error: redefinition of ‘struct std::__is_integer<unsigned char>’
151 | struct __is_integer<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:130:12: note: previous definition of ‘struct std::__is_integer<unsigned char>’
130 | struct __is_integer<bool>
| ^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/move.h:37,
from /usr/include/c++/15.2.1/bits/exception_ptr.h:41,
from /usr/include/c++/15.2.1/exception:168,
from /usr/include/c++/15.2.1/ios:43,
from /usr/include/c++/15.2.1/bits/ostream.h:43,
from /usr/include/c++/15.2.1/ostream:42,
from /usr/include/c++/15.2.1/iostream:43,
from ../c++/etip.h:351,
from ../../ncurses-6.5/c++/cursesw.h:52,
from ../../ncurses-6.5/c++/cursesp.h:41,
from ../../ncurses-6.5/c++/cursesf.h:41,
from ../../ncurses-6.5/c++/cursesf.cc:36:
/usr/include/c++/15.2.1/type_traits:361:12: error: redefinition of ‘struct std::__is_integral_helper<unsigned char>’
361 | struct __is_integral_helper<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/type_traits:349:12: note: previous definition of ‘struct std::__is_integral_helper<unsigned char>’
349 | struct __is_integral_helper<bool>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/move.h:37,
from /usr/include/c++/15.2.1/bits/exception_ptr.h:41,
from /usr/include/c++/15.2.1/exception:168,
from /usr/include/c++/15.2.1/ios:43,
from /usr/include/c++/15.2.1/bits/ostream.h:43,
from /usr/include/c++/15.2.1/ostream:42,
from /usr/include/c++/15.2.1/iostream:43,
from ../c++/etip.h:351,
from ../../ncurses-6.5/c++/cursesw.h:52,
from ../../ncurses-6.5/c++/cursesp.h:41,
from ../../ncurses-6.5/c++/cursesp.cc:36:
/usr/include/c++/15.2.1/type_traits:361:12: error: redefinition of ‘struct std::__is_integral_helper<unsigned char>’
361 | struct __is_integral_helper<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/type_traits:349:12: note: previous definition of ‘struct std::__is_integral_helper<unsigned char>’
349 | struct __is_integral_helper<bool>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/string_view:52,
from /usr/include/c++/15.2.1/bits/basic_string.h:51,
from /usr/include/c++/15.2.1/string:56:
/usr/include/c++/15.2.1/bits/functional_hash.h:137:3: error: redefinition of ‘struct std::hash<unsigned char>’
137 | _Cxx_hashtable_define_trivial_hash(unsigned char)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/functional_hash.h:128:3: note: previous definition of ‘struct std::hash<unsigned char>’
128 | _Cxx_hashtable_define_trivial_hash(bool)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/exception_ptr.h: In member function ‘std::__exception_ptr::exception_ptr::operator NCURSES_BOOL() const’:
/usr/include/c++/15.2.1/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++/15.2.1/string_view:52,
from /usr/include/c++/15.2.1/bits/basic_string.h:51,
from /usr/include/c++/15.2.1/string:56:
/usr/include/c++/15.2.1/bits/functional_hash.h:137:3: error: redefinition of ‘struct std::hash<unsigned char>’
137 | _Cxx_hashtable_define_trivial_hash(unsigned char)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/functional_hash.h:128:3: note: previous definition of ‘struct std::hash<unsigned char>’
128 | _Cxx_hashtable_define_trivial_hash(bool)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/string_view:52,
from /usr/include/c++/15.2.1/bits/basic_string.h:51,
from /usr/include/c++/15.2.1/string:56:
/usr/include/c++/15.2.1/bits/functional_hash.h:137:3: error: redefinition of ‘struct std::hash<unsigned char>’
137 | _Cxx_hashtable_define_trivial_hash(unsigned char)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/functional_hash.h:128:3: note: previous definition of ‘struct std::hash<unsigned char>’
128 | _Cxx_hashtable_define_trivial_hash(bool)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/string_view:52,
from /usr/include/c++/15.2.1/bits/basic_string.h:51,
from /usr/include/c++/15.2.1/string:56:
/usr/include/c++/15.2.1/bits/functional_hash.h:137:3: error: redefinition of ‘struct std::hash<unsigned char>’
137 | _Cxx_hashtable_define_trivial_hash(unsigned char)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/functional_hash.h:128:3: note: previous definition of ‘struct std::hash<unsigned char>’
128 | _Cxx_hashtable_define_trivial_hash(bool)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/string_view:52,
from /usr/include/c++/15.2.1/bits/basic_string.h:51,
from /usr/include/c++/15.2.1/string:56:
/usr/include/c++/15.2.1/bits/functional_hash.h:137:3: error: redefinition of ‘struct std::hash<unsigned char>’
137 | _Cxx_hashtable_define_trivial_hash(unsigned char)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/functional_hash.h:128:3: note: previous definition of ‘struct std::hash<unsigned char>’
128 | _Cxx_hashtable_define_trivial_hash(bool)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/exception:169:
/usr/include/c++/15.2.1/bits/nested_exception.h: In member function ‘void std::nested_exception::rethrow_nested() const’:
/usr/include/c++/15.2.1/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++/15.2.1/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++/15.2.1/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
/usr/include/c++/15.2.1/bits/exception_ptr.h: In member function ‘std::__exception_ptr::exception_ptr::operator NCURSES_BOOL() const’:
/usr/include/c++/15.2.1/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++/15.2.1/exception:169:
/usr/include/c++/15.2.1/bits/nested_exception.h: In member function ‘void std::nested_exception::rethrow_nested() const’:
/usr/include/c++/15.2.1/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++/15.2.1/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++/15.2.1/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
In file included from /usr/include/c++/15.2.1/string_view:52,
from /usr/include/c++/15.2.1/bits/basic_string.h:51,
from /usr/include/c++/15.2.1/string:56:
/usr/include/c++/15.2.1/bits/functional_hash.h:137:3: error: redefinition of ‘struct std::hash<unsigned char>’
137 | _Cxx_hashtable_define_trivial_hash(unsigned char)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/functional_hash.h:128:3: note: previous definition of ‘struct std::hash<unsigned char>’
128 | _Cxx_hashtable_define_trivial_hash(bool)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/string:46,
from /usr/include/c++/15.2.1/bits/locale_classes.h:42,
from /usr/include/c++/15.2.1/bits/ios_base.h:43,
from /usr/include/c++/15.2.1/ios:46:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h: At global scope:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:151:12: error: redefinition of ‘struct std::__is_integer<unsigned char>’
151 | struct __is_integer<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:130:12: note: previous definition of ‘struct std::__is_integer<unsigned char>’
130 | struct __is_integer<bool>
| ^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/string:46,
from /usr/include/c++/15.2.1/bits/locale_classes.h:42,
from /usr/include/c++/15.2.1/bits/ios_base.h:43,
from /usr/include/c++/15.2.1/ios:46:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h: At global scope:
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:151:12: error: redefinition of ‘struct std::__is_integer<unsigned char>’
151 | struct __is_integer<unsigned char>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/cpp_type_traits.h:130:12: note: previous definition of ‘struct std::__is_integer<unsigned char>’
130 | struct __is_integer<bool>
| ^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/memory_resource.h:40,
from /usr/include/c++/15.2.1/string:72:
/usr/include/c++/15.2.1/cstddef:81:21: error: redefinition of ‘struct std::__byte_operand<unsigned char>’
81 | template<> struct __byte_operand<unsigned char> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/memory_resource.h:40,
from /usr/include/c++/15.2.1/string:72:
/usr/include/c++/15.2.1/cstddef:81:21: error: redefinition of ‘struct std::__byte_operand<unsigned char>’
81 | template<> struct __byte_operand<unsigned char> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/cstddef:78:21: note: previous definition of ‘struct std::__byte_operand<unsigned char>’
78 | template<> struct __byte_operand<bool> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/cstddef:78:21: note: previous definition of ‘struct std::__byte_operand<unsigned char>’
78 | template<> struct __byte_operand<bool> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/memory_resource.h:40,
from /usr/include/c++/15.2.1/string:72:
/usr/include/c++/15.2.1/cstddef:81:21: error: redefinition of ‘struct std::__byte_operand<unsigned char>’
81 | template<> struct __byte_operand<unsigned char> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/cstddef:78:21: note: previous definition of ‘struct std::__byte_operand<unsigned char>’
78 | template<> struct __byte_operand<bool> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/memory_resource.h:40,
from /usr/include/c++/15.2.1/string:72:
/usr/include/c++/15.2.1/cstddef:81:21: error: redefinition of ‘struct std::__byte_operand<unsigned char>’
81 | template<> struct __byte_operand<unsigned char> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/cstddef:78:21: note: previous definition of ‘struct std::__byte_operand<unsigned char>’
78 | template<> struct __byte_operand<bool> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/memory_resource.h:40,
from /usr/include/c++/15.2.1/string:72:
/usr/include/c++/15.2.1/cstddef:81:21: error: redefinition of ‘struct std::__byte_operand<unsigned char>’
81 | template<> struct __byte_operand<unsigned char> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/cstddef:78:21: note: previous definition of ‘struct std::__byte_operand<unsigned char>’
78 | template<> struct __byte_operand<bool> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/string_view:52,
from /usr/include/c++/15.2.1/bits/basic_string.h:51,
from /usr/include/c++/15.2.1/string:56:
/usr/include/c++/15.2.1/bits/functional_hash.h:137:3: error: redefinition of ‘struct std::hash<unsigned char>’
137 | _Cxx_hashtable_define_trivial_hash(unsigned char)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/functional_hash.h:128:3: note: previous definition of ‘struct std::hash<unsigned char>’
128 | _Cxx_hashtable_define_trivial_hash(bool)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/memory_resource.h:40,
from /usr/include/c++/15.2.1/string:72:
/usr/include/c++/15.2.1/cstddef:81:21: error: redefinition of ‘struct std::__byte_operand<unsigned char>’
81 | template<> struct __byte_operand<unsigned char> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/cstddef:78:21: note: previous definition of ‘struct std::__byte_operand<unsigned char>’
78 | template<> struct __byte_operand<bool> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/string_view:52,
from /usr/include/c++/15.2.1/bits/basic_string.h:51,
from /usr/include/c++/15.2.1/string:56:
/usr/include/c++/15.2.1/bits/functional_hash.h:137:3: error: redefinition of ‘struct std::hash<unsigned char>’
137 | _Cxx_hashtable_define_trivial_hash(unsigned char)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/bits/functional_hash.h:128:3: note: previous definition of ‘struct std::hash<unsigned char>’
128 | _Cxx_hashtable_define_trivial_hash(bool)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/memory_resource.h:40,
from /usr/include/c++/15.2.1/string:72:
/usr/include/c++/15.2.1/cstddef:81:21: error: redefinition of ‘struct std::__byte_operand<unsigned char>’
81 | template<> struct __byte_operand<unsigned char> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/cstddef:78:21: note: previous definition of ‘struct std::__byte_operand<unsigned char>’
78 | template<> struct __byte_operand<bool> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/15.2.1/bits/memory_resource.h:40,
from /usr/include/c++/15.2.1/string:72:
/usr/include/c++/15.2.1/cstddef:81:21: error: redefinition of ‘struct std::__byte_operand<unsigned char>’
81 | template<> struct __byte_operand<unsigned char> { using __type = byte; };
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/15.2.1/cstddef:78:21: note: previous definition of ‘struct std::__byte_operand<unsigned char>’
78 | template<> struct __byte_operand<bool> { using __type = byte; };i have googled this everywhere and i cant find anything about this error, help is appreciated.
Last edited by Anjo1920 (Yesterday 10:02:11)
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#2 2026-02-08 21:20:49
- WorMzy
- Administrator
- From: Scotland
- Registered: 2010-06-16
- Posts: 13,294
- Website
Re: [SOLVED] problem with compiing ncurses
Please edit your post to use code tags.
https://wiki.archlinux.org/title/Genera … s_and_code
https://bbs.archlinux.org/help.php#bbcode
Sakura:-
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Making lemonade from lemons since 2015.
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#3 2026-02-08 21:46:23
- seth
- Member
- From: Don't DM me only for attention
- Registered: 2012-09-03
- Posts: 72,859
Re: [SOLVED] problem with compiing ncurses
/usr/include/c++/15.2.1/type_traits:361:12: error: redefinition of ‘struct std::__is_integral_helper<unsigned char>’
/usr/include/c++/15.2.1/type_traits:349:12: note: previous definition of ‘struct std::__is_integral_helper<unsigned char>’
/usr/include/c++/15.2.1/bits/exception_ptr.h:162:16: error: invalid conversion from ‘void*’ to ‘NCURSES_BOOL’ {aka ‘unsigned char’} [-fpermissive]Something defines bool as uchar, causing various template collisions.
Edit:
https://gitlab.archlinux.org/archlinux/ … =heads#L76 ?
Last edited by seth (2026-02-08 21:47:57)
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#4 Yesterday 09:39:14
- Anjo1920
- Member
- Registered: 2026-02-08
- Posts: 3
Re: [SOLVED] problem with compiing ncurses
seth wrote:
/usr/include/c++/15.2.1/type_traits:361:12: error: redefinition of ‘struct std::__is_integral_helper<unsigned char>’ /usr/include/c++/15.2.1/type_traits:349:12: note: previous definition of ‘struct std::__is_integral_helper<unsigned char>’ /usr/include/c++/15.2.1/bits/exception_ptr.h:162:16: error: invalid conversion from ‘void*’ to ‘NCURSES_BOOL’ {aka ‘unsigned char’} [-fpermissive]Something defines bool as uchar, causing various template collisions.
this worked... thank you 
also how do i close topics?
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#5 Yesterday 10:01:05
- schard
- Forum Moderator
- From: Hannover
- Registered: 2016-05-06
- Posts: 2,505
- Website
Re: [SOLVED] problem with compiing ncurses
You don't close topics. If your issue is solved, please edit the first post of your thread and prepend "[SOLVED]" to the title so that other users know that there's nothing left to do, but maybe a solution to find.
Inofficial first vice president of the Rust Evangelism Strike Force
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#6 Yesterday 10:01:55
- Anjo1920
- Member
- Registered: 2026-02-08
- Posts: 3
Re: [SOLVED] problem with compiing ncurses
schard wrote:
You don't close topics. If your issue is solved, please edit the first post of your thread and prepend "[SOLVED]" to the title so that other users know that there's nothing left to do, but maybe a solution to find.
thanks
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