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Description
Describe what's wrong
Got error when build from scratch, using llvm-20.
How to reproduce
create file CMakePresets.json:
{
"version": 3,
"cmakeMinimumRequired": {
"major": 3,
"minor": 21,
"patch": 0
},
"configurePresets": [
{
"name": "llvm17",
"generator": "Ninja",
"cacheVariables": {
"CMAKE_C_COMPILER": "/usr/lib/llvm-17/bin/clang",
"CMAKE_CXX_COMPILER": "/usr/lib/llvm-17/bin/clang++"
}
},
{
"name": "llvm20",
"generator": "Ninja",
"cacheVariables": {
"CMAKE_C_COMPILER": "/usr/lib/llvm-20/bin/clang",
"CMAKE_CXX_COMPILER": "/usr/lib/llvm-20/bin/clang++"
}
}
]
}# build using llvm-20
cmake . -B build --preset llvm20
ninja -C buildError message and/or stacktrace
[build] /home/xiaochen/code/proton/contrib/flatbuffers/include/flatbuffers/stl_emulation.h:549:12: error: cannot assign to non-static data member 'count_' with const-qualified type 'const size_type' (aka 'const unsigned long')
[build] 549 | count_ = other.count_;
[build] | ~~~~~~ ^
[build] /home/xiaochen/code/proton/contrib/flatbuffers/include/flatbuffers/stl_emulation.h:628:19: note: non-static data member 'count_' declared const here
[build] 628 | const size_type count_;
[build] | ~~~~~~~~~~~~~~~~^~~~~~
[build] 1 error generated.
Additional context
This issue was also reported at:
CleverRaven/Cataclysm-DDA#77355
and is fixed at:
google/flatbuffers@20aad0c
I'm going to update its version to new and do some verification to ensure the correctness and performance.