RFR: 8307527: MacOS Zero builds fail with undefined FFI_GO_CLOSURES after JDK-8304265 [v2]

[Aleksey Shipilev]

On Mon, 8 May 2023 10:18:35 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> See the bug. Actually, I am not sure why JDK-8304265 changed the `#ifndef FFI_GO_CLOSURES` to `#ifdef _APPLE_`. That seems too intrusive if `FFI_GO_CLOSURES` *is* enabled. So I rewrote the block to something more safe.
>> 
>> Additional testing:
>>  - [x] macos-aarch64-zero-fastdebug `make images` passes
>
> Aleksey Shipilev has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Use a build system fix

Closing in favor of #14446.

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PR Comment: https://git.openjdk.org/jdk/pull/13827#issuecomment-1589583193