flimflam: Enable -Wimplicit-function-declaration.

src/connman.h

Index: src/connman.h
diff --git a/src/connman.h b/src/connman.h
index 720627ad797e709ac44e2def1728aa09aee69023..a54830ee2a6260f3e454d488f6905a935a22ef5a 100644
--- a/src/connman.h
+++ b/src/connman.h
@@ -86,6 +86,9 @@ unsigned __connman_debug_getmask(void);
 const gchar *__connman_debug_getmask_str(void);
 unsigned __connman_debug_setmask(unsigned debugmask);
 gboolean __connman_debug_enabled(unsigned debugmask);
+unsigned __connman_debug_tags_to_mask(const char *tags, GError **error);
+gboolean __connman_debug_set_tags(char *taglist);
+
 
 #include <connman/option.h>
 
@@ -328,6 +331,9 @@ const char *__connman_network_get_ident(struct connman_network *network);
 connman_bool_t __connman_network_get_weakness(struct connman_network *network);
 connman_bool_t __connman_network_get_connecting(struct connman_network *network);
 
+int __connman_network_activate_cellular_modem(struct connman_network *network,
+                                              const char *carrier);
+
 #include <connman/profile.h>
 
 int __connman_profile_init();
@@ -418,6 +424,8 @@ void __connman_service_set_registration_info(
 		enum connman_network_cellular_technology network_technology,
 		enum connman_network_cellular_roaming_state roaming_state);
 
+enum connman_service_type __connman_service_string2type(const char *str);
+
 #include <connman/provider.h>
 
 #include <connman/notifier.h>