[jdk19u] RFR: 8296904: Improve handling of macos xcode toolchain

[Matthias Baesken]

On Thu, 24 Nov 2022 07:47:43 GMT, Christoph Langer <clanger at openjdk.org> wrote:

> The diff to the make file and building.md applied cleanly.
> I had to regenerate building.html due to the different version of pandoc used.

LGTM

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Marked as reviewed by mbaesken (Reviewer).

PR: https://git.openjdk.org/jdk19u/pull/92