The solution is to find out why it wasn't using GNU C++ :)
On Fri, 25 Apr 1997, Philip Hazel wrote:
> On Fri, 25 Apr 1997, Alan Barrett wrote:
>
> > A useful compromise is to put the "#" in column 1, with white space
> > between "#" and "define"/"if"/whatever. I don't recall ever encountering
> > a C compiler that didn't like that.
>
> But Exim uses other features of ANSI C, so it does need an ANSI C
> compiler, and so I don't think you gain much by mangling the source that
> way. I took a conscious decision to write it in ANSI C. Heck, ANSI C has
> been defined for nearly a decade, hasn't it? Oh, perhaps not quite; I
> think it was 1989 (but compilers were tracking it before then). Still,
> pretty well all compilers today accept it.
>
> --
> Philip Hazel University Computing Service,
> ph10@??? New Museums Site, Cambridge CB2 3QG,
> P.Hazel@??? England. Phone: +44 1223 334714
>