While compiling a third party application against nunc-stans with -Wstrict-prototypes, I noticed compilation errors with nunc-stans.h

Compiling nunc-stans with -Wstrict-prototypes yielded the following errors:

In file included from ns_private.h:42:0,
from ns_event_fw.h:35,
from ns_thrpool.c:53:
nunc-stans.h:376:5: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
void (log_start_fct)(); /< Function to call to initialize the logging system /
^
nunc-stans.h:377:5: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
void (log_close_fct)(); /< Function to call to shutdown the logging system /
^
In file included from ns_thrpool.c:53:0:
ns_event_fw.h:146:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
ns_event_fw_t get_event_framework_event();
^
ns_event_fw.h:147:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
ns_event_fw_t get_event_framework_tevent();
^
ns_thrpool.c:96:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
static void (log_start)() = NULL;
^
ns_thrpool.c:97:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
static void (log_close)() = NULL;
^
ns_thrpool.c:113:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
ns_syslog_start()
^
ns_thrpool.c:119:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
ns_syslog_close()