Original commit message:
powerpc: fix aix/darwin closure build errors
unbuildable: the PPC_LD_* jump-table indexes (defined in ffi_powerpc.h,
which this file cannot include) were missing, and the closure helper
functions still declared an ffi_type* return type inconsistent with the
PPC_LD_* constants they now return.
Define the PPC_LD_* constants locally and change the closure helper
return types to int.
Fixes#987
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Refs: 9ca53a1983
PR-URL: https://github.com/nodejs/node/pull/64040
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: René <contact.9a5d6388@renegade334.me.uk>
Reviewed-By: Paolo Insogna <paolo@cowtech.it>
bbef54b413