error: unknown argument: '-g' - Unable to get debug information

[100xCoder]

In using libclang-cpp18 I notice that whichever dwarf-enabling flag I supply to clang::CompilerInvocation, it always fails with "unknown argument". When I supply "-gdwarf64" it is accepted, it's even suggested when I try "-gdwarf-4", which is also unknown.

Ubuntu clang version 18.0.0 (++20230917042247+4a1fe09b189f-1exp120230917042412.1190)

[pogo59]

-g is a driver flag, and CompilerInvocation is the frontend. If you're calling CompilerInvocation directly, you probably want -debug-info-kind=limited.