tests: fix compilation of tests on FreeBSD 11

Some includes were missing in .h files, and the tests must be linked
with intl and execinfo on FreeBSD.

src/plugins/irc/irc-channel.h

@@ -20,6 +20,8 @@
 #ifndef WEECHAT_IRC_CHANNEL_H
 #define WEECHAT_IRC_CHANNEL_H 1
 
+#include <time.h>
+
 #define IRC_CHANNEL_DEFAULT_CHANTYPES "#&+!"
 
 /* channel types */

src/plugins/irc/irc-ctcp.h

@@ -20,6 +20,8 @@
 #ifndef WEECHAT_IRC_CTCP_H
 #define WEECHAT_IRC_CTCP_H 1
 
+#include <time.h>
+
 struct t_irc_server;
 struct t_irc_channel;
 

src/plugins/irc/irc-protocol.h

@@ -20,6 +20,8 @@
 #ifndef WEECHAT_IRC_PROTOCOL_H
 #define WEECHAT_IRC_PROTOCOL_H 1
 
+#include <time.h>
+
 #define IRC_PROTOCOL_CALLBACK(__command)                                \
     int                                                                 \
     irc_protocol_cb_##__command (struct t_irc_server *server,           \

src/plugins/irc/irc-raw.h

@@ -20,6 +20,8 @@
 #ifndef WEECHAT_IRC_RAW_H
 #define WEECHAT_IRC_RAW_H 1
 
+#include <time.h>
+
 #define IRC_RAW_BUFFER_NAME "irc_raw"
 
 #define IRC_RAW_PREFIX_RECV          "-->"

src/plugins/irc/irc-redirect.h

@@ -20,6 +20,8 @@
 #ifndef WEECHAT_IRC_REDIRECT_H
 #define WEECHAT_IRC_REDIRECT_H 1
 
+#include <time.h>
+
 #define IRC_REDIRECT_TIMEOUT_DEFAULT 60
 
 struct t_irc_server;

src/plugins/irc/irc-server.h

@@ -21,6 +21,7 @@
 #ifndef WEECHAT_IRC_SERVER_H
 #define WEECHAT_IRC_SERVER_H 1
 
+#include <time.h>
 #include <sys/time.h>
 #include <regex.h>