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path: root/gnu/packages/patches/isc-dhcp-gcc-compat.patch
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Add minor fixes for compiling with GCC 10.

Taken from upstream:
https://gitlab.isc.org/isc-projects/dhcp/-/commit/6c7e61578b1b449272dbb40dd8b98d03dad8a57a

diff --git a/client/dhclient.c b/client/dhclient.c
--- a/client/dhclient.c
+++ b/client/dhclient.c
@@ -83,8 +83,9 @@ static const char message [] = "Internet Systems Consortium DHCP Client";
 static const char url [] = "For info, please visit https://www.isc.org/software/dhcp/";
 #endif /* UNIT_TEST */
 
-u_int16_t local_port = 0;
-u_int16_t remote_port = 0;
+extern u_int16_t local_port;
+extern u_int16_t remote_port;
+
 #if defined(DHCPv6) && defined(DHCP4o6)
 int dhcp4o6_state = -1; /* -1 = stopped, 0 = polling, 1 = started */
 #endif
diff --git a/common/discover.c b/common/discover.c
--- a/common/discover.c
+++ b/common/discover.c
@@ -45,8 +45,8 @@ struct interface_info *fallback_interface = 0;
 
 int interfaces_invalidated;
 int quiet_interface_discovery;
-u_int16_t local_port;
-u_int16_t remote_port;
+u_int16_t local_port = 0;
+u_int16_t remote_port = 0;
 u_int16_t relay_port = 0;
 int dhcpv4_over_dhcpv6 = 0;
 int (*dhcp_interface_setup_hook) (struct interface_info *, struct iaddr *);
diff --git a/relay/dhcrelay.c b/relay/dhcrelay.c
--- a/relay/dhcrelay.c
+++ b/relay/dhcrelay.c
@@ -95,8 +95,8 @@ enum { forward_and_append,	/* Forward and append our own relay option. */
        forward_untouched,	/* Forward without changes. */
        discard } agent_relay_mode = forward_and_replace;
 
-u_int16_t local_port;
-u_int16_t remote_port;
+extern u_int16_t local_port;
+extern u_int16_t remote_port;
 
 /* Relay agent server list. */
 struct server_list {
diff --git a/server/mdb.c b/server/mdb.c
--- a/server/mdb.c
+++ b/server/mdb.c
@@ -67,7 +67,7 @@ static host_id_info_t *host_id_info = NULL;
 
 int numclasseswritten;
 
-omapi_object_type_t *dhcp_type_host;
+extern omapi_object_type_t *dhcp_type_host;
 
 isc_result_t enter_class(cd, dynamicp, commit)
 	struct class *cd;
diff --git a/server/mdb6.c b/server/mdb6.c
--- a/server/mdb6.c
+++ b/server/mdb6.c
@@ -1945,7 +1945,7 @@ create_prefix6(struct ipv6_pool *pool, struct iasubopt **pref,
 		}
 		new_ds.data = new_ds.buffer->data;
 		memcpy(new_ds.buffer->data, ds.data, ds.len);
-		memcpy(new_ds.buffer->data + ds.len, &tmp, sizeof(tmp));
+		memcpy(&new_ds.buffer->data[0] + ds.len, &tmp, sizeof(tmp));
 		data_string_forget(&ds, MDL);
 		data_string_copy(&ds, &new_ds, MDL);
 		data_string_forget(&new_ds, MDL);