conftest.c should #include confdefs.h

[Stepan Kasal]

Hello,

currently, conftest.c contains a copy of confdefs.h.
This feature was introduced by Akim in 2002, see
http://lists.gnu.org/archive/html/autoconf-patches/2002-10/msg00072.html

The reasoning mentions "better logs", not problems with #include.

But the comment above the definition of AC_LANG_SOURCE(C) at that time
mentioned that
        # This sometimes fails to find confdefs.h, for some reason.
(By mistake, the comment is still there.)
But as I said, this was not the reason for avoiding #include.

So I suggest the following optimization.
OK to commit?

Stepan

autoconf-20050906-log-conftest.patch
Description: Text document