PowerPC: HEAD validate fails due to warnings in libffi

Validate produces the following error message:

In file included from rts/dist/build/ffi.h:58:0: error:
    0,
                     from rts/Adjustor.c:46:

rts/dist/build/ffitarget.h:157:7: error:
     error: "FFI_TYPE_LAST" is not defined [-Werror=undef]
     #if !(FFI_TYPE_LAST == FFI_PPC_TYPE_LAST  \

and a few more like this.

Perhaps, we could turn off the warning for files that include ffi.h on PowerPC.

Trac metadata

Trac field	Value
Version	8.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
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PowerPC: HEAD validate fails due to warnings in libffi