[llvm-branch-commits] [libcxx] release/23.x: [libc++] Fix ungetc failing after xsgetn (#210951) (PR #212510)

[Nikolas Klauser via llvm-branch-commits]

philnik777 wrote:

> @philnik777 Are we missing another cherry-pick? https://github.com/llvm/llvm-project/actions/runs/30369155433/job/90326016892?pr=212510#step:4:4403

We're simply not triggering the `// XFAIL: using-built-library-before-llvm-24` anymore because it's not yet defined in the branch. I guess we simply need to update that in the main branch and here.

https://github.com/llvm/llvm-project/pull/212510