Changes in C++ FE regarding pedwarns to be errors are harmful

[Gabriel Dos Reis]

On Sun, 13 Jan 2008, Ismail Dönmez wrote:

| Sunday 13 January 2008 18:40:25 tarihinde Gabriel Dos Reis sunlar? yazm?st?:
| > | real life testcase shows that problem stems from
| > | autoconf and its config.h. Projects end up defining things like
| > | HAVE_STDLIB_H twice which is not harmful at all but now causes an error
| > | if g++ is used.
| >
| > The problem is that any semantics of the above -- that is not an error
| > or silent ignorance -- is order-dependent, which is worse to debug.
| 
| True but lots of real world applications are falling apart,

I believe it has been reported the numbre of those (reported in an
earlier message) is an overstatement.

-- Gaby