cpp oddities. was: sparc-sun-solaris2.8 headers: fixinc, cpplib

[Robert Lipe]

Neil Booth wrote:
> Robert Lipe wrote:-
> 
> > Another mystery to me is that this behaves differently if it's manually
> > preprocessed vs. letting the wrapper do it.
> 
> Some front-end code seems to require in_system_header be 1 to be
> considered in a system header; other code seems to require non-zero.
> Hence why you got some warnings and not others.

Joy.

> This truly trivial patch seems to fix it for me (please confirm); I'll
> commit this now without a bootstrap as it is obviously harmless.

This makes my builds _much_ more reasonable once again.

(Now I can get off the cpp horse for a while and go annoy the dwarf and
libstdc++ crowd again. :-)

Thanx much,
RJL