RFR: 8284732: FFI_GO_CLOSURES macro not defined but required for zero build on Mac OS X

[David Holmes]

On Tue, 12 Apr 2022 07:53:32 GMT, Johannes Bechberger <duke at openjdk.java.net> wrote:

> It just codifies the current behavior as it defines `FFI_GO_CLOSURES` to be `0`.

Correction: we don't build Zero, and GHA only builds it for Linux x64.

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PR: https://git.openjdk.java.net/jdk/pull/8195