* Makefile.am (EXTRA_DIST): Add Darwin and AIX files.
        (TARGET_SRC_POWERPC_AIX): New.
        (POWERPC_AIX): New stanza.
        * Makefile.in: Regenerate.
        * configure.in: Add AIX case.
        * configure: Regenerate.
        * include/ffi.h.in (ffi_abi): Add FFI_AIX.
        * src/powerpc/ffi_darwin.c (ffi_status): Use "long" to scale frame
        size.  Fix "long double" support.
        (ffi_call): Add FFI_AIX case.
        * src/powerpc/aix.S: New.

From-SVN: r48956