Bootstrap failure on Linux/x86-64 in Ada

[Richard Kenner]

    Personally, I think that the way ADAFLAGS is specified is too
    error-prone.  I understood that Kenner said, -gnatg is necessary on
    the language components, but is actually removing a legitimate warning
    for other files such as the compiler.  

No, because -gnatg also imposes strict style checking and conformance
with coding conventions.  I was saying why it was *required* to
be specified, not *why* we specify it.