[master] Added include of isc/util.h as needed

    Merges in 46332.

RELNOTES

@@ -1138,6 +1138,11 @@ dhcp-users@lists.isc.org.
   for pointing out the error of our ways.
   [ISC-bugs #45780]
 
+- Added explicit include of BIND9 isc/util.h to adapt to revisisions
+  in BIND9 (see BIND9 ticket #46311).  Prior to this the build was failing
+  with implicit function declarations errors for POST() and INSIST().
+  [ISC-bugs #46332]
+
 			Changes since 4.2.0 (new features)
 
 - If a client renews before 'dhcp-cache-threshold' percent of its lease

client/dhclient.c

@@ -31,14 +31,15 @@
  */
 
 #include "dhcpd.h"
+#include <isc/util.h>
+#include <isc/file.h>
+#include <dns/result.h>
 #include <syslog.h>
 #include <signal.h>
 #include <errno.h>
 #include <sys/time.h>
 #include <sys/wait.h>
 #include <limits.h>
-#include <isc/file.h>
-#include <dns/result.h>
 
 TIME default_lease_time = 43200; /* 12 hours... */
 TIME max_lease_time = 86400; /* 24 hours... */

common/execute.c

@@ -27,6 +27,7 @@
  */
 
 #include "dhcpd.h"
+#include <isc/util.h>
 #include <omapip/omapip_p.h>
 #include <sys/types.h>
 #include <sys/wait.h>

common/parse.c

@@ -27,6 +27,7 @@
  */
 
 #include "dhcpd.h"
+#include <isc/util.h>
 #include <syslog.h>
 
 struct collection default_collection = { NULL, "default", NULL };

common/socket.c

@@ -35,6 +35,7 @@
  */
 
 #include "dhcpd.h"
+#include <isc/util.h>
 #include <errno.h>
 #include <sys/ioctl.h>
 #include <sys/uio.h>

omapip/connection.c

@@ -27,7 +27,7 @@
  */
 
 #include "dhcpd.h"
-
+#include <isc/util.h>
 #include <omapip/omapip_p.h>
 #include <arpa/inet.h>
 #include <arpa/nameser.h>