OSS-fuzzing

[Даблус]

Hello. I want to try to run oss-fuzz tests by myself, but i found no info
about it. I found some scripts in the "bin" folder, like oss-fuzz-setup.sh
and oss-fuzz-build.sh, and found that I should use clang, but I found
nothing about the environment. I can build LibreOffice with clang, but if i
run oss-fuzz-build, i get a lot of errors after postprocess step

What environment should i use and how should i run fuzzing correctly?

I use clang 15, LibreOffice builds successfully without fuzzing

I get errors like this:

/usr/lib/llvm-15/lib/clang/15.0.7/lib/linux/libclang_rt.fuzzer-x86_64.a(FuzzerDataFlowTrace.cpp.o):function
fuzzer::BlockCoverage::AppendCoverage(std::istream&): error: undefined
reference to 'VTT for std::__cxx11::basic_stringstream<char,
std::char_traits<char>, std::allocator<char> >'

/usr/lib/llvm-15/lib/clang/15.0.7/lib/linux/libclang_rt.fuzzer-x86_64.a(FuzzerDataFlowTrace.cpp.o):function
fuzzer::BlockCoverage::AppendCoverage(std::istream&): error: undefined
reference to 'vtable for std::basic_ios<char, std::char_traits<char> >'

/usr/bin/ld.gold: the vtable symbol may be undefined because the class is
missing its key function
/usr/lib/llvm-15/lib/clang/15.0.7/lib/linux/libclang_rt.fuzzer-x86_64.a(FuzzerDataFlowTrace.cpp.o):function
fuzzer::BlockCoverage::AppendCoverage(std::istream&): error: undefined
reference to 'vtable for std::basic_streambuf<char, std::char_traits<char>
>'
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