Protoized old pre-ANSI K&R style definitions

5 files changed, 8 insertions, 8 deletions

diff --git a/coroutine/copy/Context.c b/coroutine/copy/Context.c
index f6cf462282..aa8bb2ff05 100644
--- a/coroutine/copy/Context.c
+++ b/coroutine/copy/Context.c
@@ -17,7 +17,7 @@
 #if defined(__sparc)
 __attribute__((noinline))
 // https://marc.info/?l=linux-sparc&m=131914569320660&w=2
-static void coroutine_flush_register_windows() {
+static void coroutine_flush_register_windows(void) {
     __asm__
 #ifdef __GNUC__
     __volatile__
@@ -34,11 +34,11 @@ static void coroutine_flush_register_windows() {
     ;
 }
 #else
-static void coroutine_flush_register_windows() {}
+static void coroutine_flush_register_windows(void) {}
 #endif
 
 __attribute__((noinline))
-void *coroutine_stack_pointer() {
+void *coroutine_stack_pointer(void) {
     return (void*)(
         (char*)__builtin_frame_address(0)
     );
diff --git a/ext/-test-/RUBY_ALIGNOF/c.c b/ext/-test-/RUBY_ALIGNOF/c.c
index 5768b8c3dd..7a9f7cb498 100644
--- a/ext/-test-/RUBY_ALIGNOF/c.c
+++ b/ext/-test-/RUBY_ALIGNOF/c.c
@@ -9,7 +9,7 @@ struct T {
 RBIMPL_STATIC_ASSERT(RUBY_ALIGNOF, RUBY_ALIGNOF(double) == offsetof(struct T, t));
 
 void
-Init_RUBY_ALIGNOF()
+Init_RUBY_ALIGNOF(void)
 {
     // Windows linker mandates this symbol to exist.
 }
diff --git a/object.c b/object.c
index 3bc6725552..7343bd6d1c 100644
--- a/object.c
+++ b/object.c
@@ -1133,7 +1133,7 @@ rb_class_search_ancestor(VALUE cl, VALUE c)
  */
 
 static VALUE
-rb_obj_dummy()
+rb_obj_dummy(void)
 {
     return Qnil;
 }
diff --git a/scheduler.c b/scheduler.c
index 326cb0068f..9ecb25f188 100644
--- a/scheduler.c
+++ b/scheduler.c
@@ -39,7 +39,7 @@ Init_Scheduler(void)
 }
 
 VALUE
-rb_scheduler_get()
+rb_scheduler_get(void)
 {
     rb_thread_t *thread = GET_THREAD();
     VM_ASSERT(thread);
@@ -76,7 +76,7 @@ rb_threadptr_scheduler_current(rb_thread_t *thread)
 }
 
 VALUE
-rb_scheduler_current()
+rb_scheduler_current(void)
 {
     return rb_threadptr_scheduler_current(GET_THREAD());
 }
diff --git a/thread.c b/thread.c
index a1e405cda8..7fcbf9d67b 100644
--- a/thread.c
+++ b/thread.c
@@ -5402,7 +5402,7 @@ rb_thread_backtrace_locations_m(int argc, VALUE *argv, VALUE thval)
 }
 
 void
-Init_Thread_Mutex()
+Init_Thread_Mutex(void)
 {
     rb_thread_t *th = GET_THREAD();