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Re: Better GCC diagnostics
>> Even if you do not use line-map.o, the middle-end does, so you still
>> have the duplication.
>
> Right, this is the only part that is indeed shared and for which Ada requires
> libcpp.
There are exactly 6 uses of linemap functions in libcpp. They could be
replaced with a handful of function pointers, moving line-map.c to gcc.
There are 2 more uses in makedepend.c, which could define its own dummy
functions because it does not care about locations at all.
Paolo