manual-backtrace: use proper prototypes, and make functions static

Otherwise this will fail to compile with our default Autotools
compiler warnings.

diff --git a/test/manual-backtrace.c b/test/manual-backtrace.c
index 3bd470b58d47a016bba7c06509f6fd69984d7998..0cc1499d69fd1db62335f12b9795e38adc53d397 100644 (file)
--- a/test/manual-backtrace.c
+++ b/test/manual-backtrace.c
@@ -28,17 +28,20 @@
 
 #include <stdio.h>
 
-void test2()
+static void
+test2 (void)
 {
   _dbus_print_backtrace();
 }
 
-void test1()
+static void
+test1 (void)
 {
   test2();
 }
 
-void test()
+static void
+test (void)
 {
   test1();
 }