Building opencc with GCC 14 fails here:
https://build.opensuse.org/package/live_build_log/openSUSE:Factory:Staging:Gcc7/opencc/standard/x86_64
Or built using:
osc build --alternative-project openSUSE:Factory:Staging:Gcc7

Due to:

OpenCC-ver.1.1.7/src/../deps/rapidjson-1.1.0/rapidjson/document.h:319:82: error: assignment of read-only member ‘rapidjson::GenericStringRef<CharType>::length’
  319 |     GenericStringRef& operator=(const GenericStringRef& rhs) { s = rhs.s; length = rhs.length; }
      |                                                                           ~~~~~~~^~~~~~~~~~~~
In file included from /home/abuild/rpmbuild/BUILD/OpenCC-ver.1.1.7/src/DictEntry.hpp:22,
                 from /home/abuild/rpmbuild/BUILD/OpenCC-ver.1.1.7/src/Dict.hpp:22,
                 from /home/abuild/rpmbuild/BUILD/OpenCC-ver.1.1.7/src/DictGroup.hpp:24,
                 from /home/abuild/rpmbuild/BUILD/OpenCC-ver.1.1.7/src/Config.cpp:28:


OpenCC-ver.1.1.7/src/../deps/rapidjson-1.1.0/rapidjson/document.h:315:13: error: invalid conversion from ‘const char*’ to ‘rapidjson::GenericStringRef<char>::Ch*’ {aka ‘char*’} [-fpermissive]
  315 |         : s(str), length(len) { RAPIDJSON_ASSERT(s != 0); }
      |             ^~~
      |             |
      |             const char*

(...)
----------------

Main culprit seems to be rapidjson, can we use openSUSE:Factory/rapidjson ?
rapidjson in Factory is a bit newer and builds with GCC14.