[PATCH 0/2] a few more redundant system include cleanups

[Jeff King <peff@peff.net>]

On Mon, Jun 17, 2019 at 11:45:37PM -0700, Carlo Marcelo Arenas Belón wrote:

> after b46054b374 ("xdiff: use git-compat-util", 2019-04-11), two system
> headers added in 2012 to xutils where no longer needed and could conflict
> as shown below:
> 
> In file included from xdiff/xinclude.h:26:0,
>                  from xdiff/xutils.c:25:
> ./git-compat-util.h:4:0: warning: "_FILE_OFFSET_BITS" redefined
>  #define _FILE_OFFSET_BITS 64
> 
> In file included from /usr/include/limits.h:37:0,
>                  from xdiff/xutils.c:23:
> /usr/include/sys/feature_tests.h:231:0: note: this is the location of the previous definition
>  #define _FILE_OFFSET_BITS 32
> 
> make sure git-compat-util.h is the first header (through xinclude.h)

Thanks, this looks good to me. I fixed the system headers in xinclude.h,
but didn't think to check for individual C files including them.

I did a quick grep for similar cases, and didn't find any that I think
would be problematic. There were a few cleanups, below.

There are still some other system includes, but they are mostly one-offs
that we wouldn't expect git-compat-util to cover (e.g., threading stuff
in thread-utils.[ch], openssl stuff in hash.h). So I think with your
patch, plus the patches below, there's nothing left to clean up.

  [1/2]: verify-tag: drop signal.h include
  [2/2]: wt-status.h: drop stdio.h include

 builtin/verify-commit.c | 1 -
 builtin/verify-tag.c    | 1 -
 wt-status.h             | 1 -
 3 files changed, 3 deletions(-)

-Peff