tdb2: use HAVE_LIBREPLACE instead of _SAMBA_BUILD_.

This is what lib/tdb2 really wants: to know if it should use normal
headers or replace.h.  It currently uses _SAMBA_BUILD_, which is wrong
for ldb, for example.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Tue Nov  1 03:19:58 CET 2011 on sn-devel-104

lib/tdb2/private.h

@@ -22,7 +22,7 @@
 #include <ccan/likely/likely.h>
 #include <ccan/endian/endian.h>
 
-#ifdef _SAMBA_BUILD_
+#ifdef HAVE_LIBREPLACE
 #include "replace.h"
 #include "system/filesys.h"
 #include "system/time.h"

lib/tdb2/tdb.c

@@ -16,7 +16,7 @@
    License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */
 #include "private.h"
-#ifndef _SAMBA_BUILD_
+#ifndef HAVE_LIBREPLACE
 #include <ccan/asprintf/asprintf.h>
 #include <stdarg.h>
 #endif

lib/tdb2/tdb2.h

@@ -29,8 +29,10 @@
 extern "C" {
 #endif
 
-#ifndef _SAMBA_BUILD_
 #include "config.h"
+#ifdef HAVE_LIBREPLACE
+#include "replace.h"
+#else
 #if HAVE_FILE_OFFSET_BITS
 #define _FILE_OFFSET_BITS 64
 #endif
@@ -46,8 +48,6 @@ extern "C" {
 #include <stdbool.h>
 /* For memcmp */
 #include <string.h>
-#else
-#include "replace.h"
 #endif
 #include <ccan/compiler/compiler.h>
 #include <ccan/typesafe_cb/typesafe_cb.h>