Fixed warnings if compiling loopwave programs with C++.
diff --git a/test/loopwave.c b/test/loopwave.c
index 09f6f57..b04d39d 100644
--- a/test/loopwave.c
+++ b/test/loopwave.c
@@ -30,7 +30,7 @@
#include "SDL.h"
-struct
+static struct
{
SDL_AudioSpec spec;
Uint8 *sound; /* Pointer to wave data */
diff --git a/test/loopwavequeue.c b/test/loopwavequeue.c
index d616012..4731622 100644
--- a/test/loopwavequeue.c
+++ b/test/loopwavequeue.c
@@ -25,7 +25,7 @@
#include <signal.h>
#endif
-struct
+static struct
{
SDL_AudioSpec spec;
Uint8 *sound; /* Pointer to wave data */