Failing to get a clang-sanitize build

[udif]

I'm trying to debug an issue using clang-sanitize the same way it is done on CI builds.
I installed llvm-18 using wget https://apt.llvm.org/llvm.sh .
I'm configuring the build using:

cmake --preset clang-sanitize -DSLANG_CI_BUILD=ON (I also tried without -DSLANG_CI_BUILD=ON)
I've compared the build log output and other than some minor differences (cmake 3.21 vs 3.29, slang6.0.46 vs 6.0.50, different home directories and some spurious whitespaces at the end of some lines), the outputs are identical.

I am building using:
cmake --build build/clang-sanitize -j8

At some point I'm getting the following build error:

[ 40%] Built target Catch2
[ 41%] Building CXX object source/CMakeFiles/slang_slang.dir/driver/Driver.cpp.o
[ 41%] Building CXX object source/CMakeFiles/slang_slang.dir/driver/SourceLoader.cpp.o
In file included from /home/udif/git/slang/source/diagnostics/Diagnostics.cpp:8:
In file included from /home/udif/git/slang/source/../include/slang/diagnostics/Diagnostics.h:17:
In file included from /home/udif/git/slang/source/../include/slang/numeric/ConstantValue.h:16:
In file included from /home/udif/git/slang/source/../include/slang/numeric/SVInt.h:16:
In file included from /home/udif/git/slang/source/../include/slang/util/SmallVector.h:10:
In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/12/../../../../include/c++/12/algorithm:61:
In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/12/../../../../include/c++/12/bits/stl_algo.h:61:
/usr/bin/../lib/gcc/x86_64-linux-gnu/12/../../../../include/c++/12/bits/stl_tempbuf.h:263:8: error: 'get_temporary_buffer<slang::Diagnostic>' is deprecated [-Werror,-Wdeprecated-declarations]
  263 |                 std::get_temporary_buffer<value_type>(_M_original_len));

From what I can see clang is picking up gcc include files, which it doesn't like.
What is the proper way for doing this, assuming I already have gcc installed?

[MikePopoloski]

It's normal for clang to use libstdc++ (gcc's standard library). It seems like this is specifically some bug with clang & libstdc++12: llvm/llvm-project#76515. I'd say install g++-13 (to get libstdc++13) or downgrade to 11 instead.

[furkanusta]

CmakePreset has -Wno-deprecated-declarations for clang, can you check the output whether it is being passed correctly?

[udif]

Thanks, I solved it by removing libstdc++-12-dev and using libstdc++-11-dev (I also removed gcc++-12 and gcc-12 but I'm not sure that was really necessary).