Add missing prototypes.

testsuites/libtests/heapwalk/init.c

@@ -58,7 +58,7 @@ static void *test_allocate_block(void)
   return _Heap_Allocate_aligned_with_boundary( &TestHeap, 1, 0, 0 );
 }
 
-static void test_create_heap_with_gaps()
+static void test_create_heap_with_gaps(void)
 {
   void *p1 = test_allocate_block();
   void *p2 = test_allocate_block();
@@ -71,7 +71,7 @@ static void test_create_heap_with_gaps()
   _Heap_Free( &TestHeap, p5 );
 }
 
-static void *test_fill_heap()
+static void *test_fill_heap(void)
 {
   void *p1 = NULL;
   void *p2 = NULL;

testsuites/libtests/malloctest/init.c

@@ -800,7 +800,7 @@ static void test_heap_block_allocate( void )
   test_heap_do_block_allocate( 3, p2 );
 }
 
-static void *test_alloc_one_page()
+static void *test_alloc_one_page(void)
 {
   void *alloc_begin_ptr = _Heap_Allocate_aligned_with_boundary(
     &TestHeap,
@@ -821,7 +821,7 @@ static void *test_alloc_one_page()
   return alloc_begin_ptr;
 }
 
-static void *test_alloc_two_pages()
+static void *test_alloc_two_pages(void)
 {
   void *alloc_begin_ptr = _Heap_Allocate_aligned_with_boundary(
     &TestHeap,
@@ -862,7 +862,7 @@ static void test_simple_resize_block(
   rtems_test_assert( status == expected_status );
 }
 
-static void test_heap_resize_block()
+static void test_heap_resize_block(void)
 {
   void *p1, *p2, *p3;
   uintptr_t new_alloc_size = 0;

testsuites/libtests/stackchk/blow.c

@@ -15,7 +15,7 @@
 
 #include <rtems.h>
 
-void b() {}
+void b(void) {}
 
 void blow_stack( void )
 {

testsuites/libtests/termios/init.c

@@ -482,7 +482,7 @@ unsigned long get_baud_rate( void )
 }
 
 
-unsigned long get_parity()
+unsigned long get_parity(void)
 {
   int parity;
 
@@ -510,7 +510,7 @@ unsigned long get_parity()
 }
 
 
-unsigned long get_stop_bits()
+unsigned long get_stop_bits(void)
 {
   int stop_bits;
 
@@ -535,7 +535,7 @@ unsigned long get_stop_bits()
 }
 
 
-unsigned long get_data_bits()
+unsigned long get_data_bits(void)
 {
   int data_bits;