[libc-commits] [libc] [libc] Use `LIBC_COPT_PUBLIC_PACKAGING` for hermetic and integration tests. (PR #79319)

[Guillaume Chatelet via libc-commits]

gchatelet wrote:

Ha I see. Thx for the explanation.
FYI This PR was initiated because I was able to break libc entirely without a single built bot noticing. Long story short we currently don't use the plain C functions in the integration tests (only the C++ ones). This is problematic because we don't actually check that we **do** ship the libc functions. Having this PR in (and the few other ones that build on it) would help me get peace of mind 🙂

https://github.com/llvm/llvm-project/pull/79319