use foo(void) instead of foo() in prototypes

In C, the latter isn't a prototype for a function with no arg,
but declares a function with an undefined number of args.

[picked from master with changes since no main_channel, spice_common,
 and a bunch of functions aren't there yet]

1 files changed, 3 insertions, 3 deletions

diff --git a/server/reds.c b/server/reds.c
index 2a62fa25..9f881c35 100644
--- a/server/reds.c
+++ b/server/reds.c
@@ -4100,7 +4100,7 @@ static void key_modifiers_sender(void *opaque)
     reds_send_keyboard_modifiers(kbd_get_leds(keyboard));
 }
 
-uint32_t reds_get_mm_time()
+uint32_t reds_get_mm_time(void)
 {
     struct timespec time_space;
     clock_gettime(CLOCK_MONOTONIC, &time_space);
@@ -4112,7 +4112,7 @@ void reds_update_mm_timer(uint32_t mm_time)
     red_dispatcher_set_mm_time(mm_time);
 }
 
-void reds_enable_mm_timer()
+void reds_enable_mm_timer(void)
 {
     SpiceMsgMainMultiMediaTime time_mes;
     RedsOutItem *item;
@@ -4128,7 +4128,7 @@ void reds_enable_mm_timer()
     reds_push_pipe_item(item);
 }
 
-void reds_desable_mm_timer()
+void reds_desable_mm_timer(void)
 {
     core->timer_cancel(reds->mm_timer);
 }