I tried to install the Vulkan SDK from the tarball from the LunarG website (version 1.3.224.1) on Fedora 37 beta (I also tried it on Nobara Linux 36) and kept getting these errors.
In function ‘std::_Require<std::__not_<std::__is_tuple_like<_Tp> >, std::is_move_constructible<_Tp>, std::is_move_assignable<_Tp> > std::swap(_Tp&, _Tp&) [with _Tp = Json::Value::ValueHolder]’,
inlined from ‘void Json::Value::swapPayload(Json::Value&)’ at /home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp:2967:12,
inlined from ‘bool Json::Reader::readValue()’ at /home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp:433:31:
/usr/include/c++/12/bits/move.h:205:7: error: ‘v.Json::Value::value_’ may be used uninitialized [-Werror=maybe-uninitialized]
205 | __a = _GLIBCXX_MOVE(__b);
| ^~~
/home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp: In member function ‘bool Json::Reader::readValue()’:
/home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp:432:11: note: ‘v’ declared here
432 | Value v;
| ^
In function ‘std::_Require<std::__not_<std::__is_tuple_like<_Tp> >, std::is_move_constructible<_Tp>, std::is_move_assignable<_Tp> > std::swap(_Tp&, _Tp&) [with _Tp = Json::Value::ValueHolder]’,
inlined from ‘void Json::Value::swapPayload(Json::Value&)’ at /home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp:2967:12,
inlined from ‘bool Json::Reader::readValue()’ at /home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp:446:33:
/usr/include/c++/12/bits/move.h:205:7: error: ‘v.Json::Value::value_’ may be used uninitialized [-Werror=maybe-uninitialized]
205 | __a = _GLIBCXX_MOVE(__b);
| ^~~
/home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp: In member function ‘bool Json::Reader::readValue()’:
/home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp:445:13: note: ‘v’ declared here
445 | Value v;
| ^
In function ‘std::_Require<std::__not_<std::__is_tuple_like<_Tp> >, std::is_move_constructible<_Tp>, std::is_move_assignable<_Tp> > std::swap(_Tp&, _Tp&) [with _Tp = Json::Value::ValueHolder]’,
inlined from ‘void Json::Value::swapPayload(Json::Value&)’ at /home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp:2967:12,
inlined from ‘bool Json::OurReader::readValue()’ at /home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp:1355:31:
/usr/include/c++/12/bits/move.h:205:7: error: ‘v.Json::Value::value_’ may be used uninitialized [-Werror=maybe-uninitialized]
205 | __a = _GLIBCXX_MOVE(__b);
| ^~~
/home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp: In member function ‘bool Json::OurReader::readValue()’:
/home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp:1354:11: note: ‘v’ declared here
1354 | Value v;
| ^
In function ‘std::_Require<std::__not_<std::__is_tuple_like<_Tp> >, std::is_move_constructible<_Tp>, std::is_move_assignable<_Tp> > std::swap(_Tp&, _Tp&) [with _Tp = Json::Value::ValueHolder]’,
inlined from ‘void Json::Value::swapPayload(Json::Value&)’ at /home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp:2967:12,
inlined from ‘bool Json::OurReader::readValue()’ at /home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp:1392:33:
/usr/include/c++/12/bits/move.h:205:7: error: ‘v.Json::Value::value_’ may be used uninitialized [-Werror=maybe-uninitialized]
205 | __a = _GLIBCXX_MOVE(__b);
| ^~~
/home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp: In member function ‘bool Json::OurReader::readValue()’:
/home/said/vulkan/1.3.224.1/source/VulkanTools/submodules/jsoncpp/dist/jsoncpp.cpp:1391:13: note: ‘v’ declared here
1391 | Value v;
| ^
I tried going through the CMake files to try to disable the -Werror=maybe-uninitialized
option but I'm not familiar with CMake so couldn't find a way to do that. I also tried going through the C++ source code itself and trying to fix it that way but still could not fix the issue.
Thank you very much.
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