git: <sys/_null.h>: Remove the #include guard.
commit 1fbab7603d753211896eb67a2eecf1be11a5db09
Author: Sascha Wildner <saw@online.de>
Date: Sat Jul 17 12:11:23 2010 +0200
<sys/_null.h>: Remove the #include guard.
POSIX states that various headers (such as <unistd.h>, <stddef.h>,
<string.h> etc.) all shall provide a definition of NULL. We do that
by including <sys/_null.h> in these headers.
The problem with the #include guard is that NULL will no longer be
defined if a program does something like this:
#include <stddef.h>
#undef NULL
#include <unistd.h>
<sys/_null.h>'s guard will still be defined and NULL is not getting
(re-)defined.
Therefore, remove the #include guard. It's just belt and suspenders
since there is an "#ifndef NULL" around everything in <sys/_null.h>
anyway.
In-discussion-with: beket
Summary of changes:
sys/sys/_null.h | 7 -------
1 files changed, 0 insertions(+), 7 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/1fbab7603d753211896eb67a2eecf1be11a5db09
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