dhcp: fix a NSUPDATE compiling issue

This patch fixes a following issue:
| omapip/isclib.c: In function 'dns_client_init':
| omapip/isclib.c:356:18: error: 'dhcp_context_t {aka struct dhcp_context}' has no member named 'dnsclient'
|   if (dhcp_gbl_ctx.dnsclient == NULL) {
|                   ^
| omapip/isclib.c:363:24: error: 'dhcp_context_t {aka struct dhcp_context}' has no member named 'dnsclient'
|            &dhcp_gbl_ctx.dnsclient,
|                         ^
| omapip/isclib.c:364:24: error: 'dhcp_context_t {aka struct dhcp_context}' has no member named 'use_local4'
|            (dhcp_gbl_ctx.use_local4 ?
|                         ^
| omapip/isclib.c:365:25: error: 'dhcp_context_t {aka struct dhcp_context}' has no member named 'local4_sockaddr'
|             &dhcp_gbl_ctx.local4_sockaddr
|                          ^
| omapip/isclib.c:367:24: error: 'dhcp_context_t {aka struct dhcp_context}' has no member named 'use_local6'
|            (dhcp_gbl_ctx.use_local6 ?
|                         ^
| omapip/isclib.c:368:25: error: 'dhcp_context_t {aka struct dhcp_context}' has no member named 'local6_sockaddr'
|             &dhcp_gbl_ctx.local6_sockaddr

(From OE-Core rev: e36076b6feca481b7a7a44b1c03c4cfca2dd8c48)

Signed-off-by: Ming Liu <liu.ming50@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 69 insertions, 0 deletions

diff --git a/meta/recipes-connectivity/dhcp/dhcp/0001-Fix-a-NSUPDATE-compiling-issue.patch b/meta/recipes-connectivity/dhcp/dhcp/0001-Fix-a-NSUPDATE-compiling-issue.patch
new file mode 100644
index 0000000000..f12a112fcf
--- /dev/null
+++ b/meta/recipes-connectivity/dhcp/dhcp/0001-Fix-a-NSUPDATE-compiling-issue.patch
@@ -0,0 +1,68 @@
+From a59cb98a473caa2afd64d7ae368480b6e9f91b3f Mon Sep 17 00:00:00 2001
+From: Ming Liu <liu.ming50@gmail.com>
+Date: Tue, 14 May 2019 11:07:15 +0200
+Subject: [PATCH] Fix a NSUPDATE compiling issue
+
+Upstream-Status: Pending [Patch sent to: https://gitlab.isc.org/isc-projects/dhcp/issues/16]
+
+A following error was observed when NSUPDATE is not defined:
+| omapip/isclib.c: In function 'dns_client_init':
+| omapip/isclib.c:356:18: error: 'dhcp_context_t {aka struct dhcp_context}' has no member named 'dnsclient'
+|   if (dhcp_gbl_ctx.dnsclient == NULL) {
+|                   ^
+| omapip/isclib.c:363:24: error: 'dhcp_context_t {aka struct dhcp_context}' has no member named 'dnsclient'
+|            &dhcp_gbl_ctx.dnsclient,
+|                         ^
+| omapip/isclib.c:364:24: error: 'dhcp_context_t {aka struct dhcp_context}' has no member named 'use_local4'
+|            (dhcp_gbl_ctx.use_local4 ?
+|                         ^
+| omapip/isclib.c:365:25: error: 'dhcp_context_t {aka struct dhcp_context}' has no member named 'local4_sockaddr'
+|             &dhcp_gbl_ctx.local4_sockaddr
+|                          ^
+| omapip/isclib.c:367:24: error: 'dhcp_context_t {aka struct dhcp_context}' has no member named 'use_local6'
+|            (dhcp_gbl_ctx.use_local6 ?
+|                         ^
+| omapip/isclib.c:368:25: error: 'dhcp_context_t {aka struct dhcp_context}' has no member named 'local6_sockaddr'
+|             &dhcp_gbl_ctx.local6_sockaddr
+
+Fix it by adding NSUPDATE conditional checking.
+
+Signed-off-by: Ming Liu <liu.ming50@gmail.com>
+---
+ includes/omapip/isclib.h | 2 ++
+ omapip/isclib.c          | 2 ++
+ 2 files changed, 4 insertions(+)
+
+diff --git a/includes/omapip/isclib.h b/includes/omapip/isclib.h
+index 538b927..6c20584 100644
+--- a/includes/omapip/isclib.h
++++ b/includes/omapip/isclib.h
+@@ -141,6 +141,8 @@ void isclib_cleanup(void);
+ void dhcp_signal_handler(int signal);
+ extern int shutdown_signal;
+ 
++#if defined (NSUPDATE)
+ isc_result_t dns_client_init();
++#endif
+ 
+ #endif /* ISCLIB_H */
+diff --git a/omapip/isclib.c b/omapip/isclib.c
+index db3b895..ce4b4a1 100644
+--- a/omapip/isclib.c
++++ b/omapip/isclib.c
+@@ -351,6 +351,7 @@ void dhcp_signal_handler(int signal) {
+        }
+ }
+ 
++#if defined (NSUPDATE)
+ isc_result_t dns_client_init() {
+        isc_result_t result;
+        if (dhcp_gbl_ctx.dnsclient == NULL) {
+@@ -387,3 +388,4 @@ isc_result_t dns_client_init() {
+ 
+        return ISC_R_SUCCESS;
+ }
++#endif
+-- 
+2.7.4
+
diff --git a/meta/recipes-connectivity/dhcp/dhcp_4.4.1.bb b/meta/recipes-connectivity/dhcp/dhcp_4.4.1.bb
index e8cc731a26..19524cb3c9 100644
--- a/meta/recipes-connectivity/dhcp/dhcp_4.4.1.bb
+++ b/meta/recipes-connectivity/dhcp/dhcp_4.4.1.bb
@@ -11,6 +11,7 @@ SRC_URI += "file://0001-define-macro-_PATH_DHCPD_CONF-and-_PATH_DHCLIENT_CON.pat
             file://0012-dhcp-correct-the-intention-for-xml2-lib-search.patch \
             file://0013-fixup_use_libbind.patch \
             file://0001-master-Added-includes-of-new-BIND9-compatibility-hea.patch \
+            file://0001-Fix-a-NSUPDATE-compiling-issue.patch \
 "
 
 SRC_URI[md5sum] = "18c7f4dcbb0a63df25098216d47b1ede"