patch to make --enable-cpp the default

[Zack Weinberg]

On Sat, 08 May 1999 06:43:17 -0600, Jeffrey A Law wrote:
>
>  In message < 199905072012.WAA02529@quatramaran.ens.fr >you write:
>  > In article < 199905051503.LAA23102@blastula.phys.columbia.edu > you write:
>  > 
>  > >which I submitted under the assumption that --enable-cpp was already
>  > >the default, and which should not have gone in if we weren't going to
>  > >make it the default.  Right now, `ln -s PREFIX/lib/gcc-lib/T/V/cpp
>  > >/bin/cpp' gets you a /bin/cpp with no predefined macros at all and
>  > >which does not recognize -undef.  That will break Imake and probably
>  > >other things as well.  This is true for both cccp and cpplib.
>  > 
>  > This *does* break other things as well.  Imake was not was prompted my
>  > initial posting of problems with respect to cccp.
>The whole point behind providing the cpp wrapper was to make imake and related
>friends happy *and* still be able to provide an ANSI clean namespace if
>requested.

Precisely.  Therefore we need to have the cpp wrapper installed by default,
otherwise people will continue to symlink gcc-lib/T/V/cpp into a public
binary directory, which will not work anymore.  At the very least, it needs
to be a documented --enable option, not a sekrit one.

I consider this to be release critical.

zw