Fix gcc build issues

Makefile

@@ -469,6 +469,7 @@ else ifeq ($(COMPILER), gcc)
         -Wno-address \
         -Wno-aggressive-loop-optimizations \
         -Wno-array-bounds \
+        -Wno-dangling-pointer \
         -Wno-int-in-bool-context \
         -Wno-int-to-pointer-cast \
         -Wno-maybe-uninitialized \

src/include/lib/rmon.h

@@ -4,7 +4,7 @@
 #include "data.h"
 #include "types.h"
 
-void rmonproc();
+void rmonproc(void *data);
 void rmon0002fa30(u32 *arg0, s32 arg1);
 void rmon0002fa38(s32 arg0);
 void rmon0002fa40(void);

src/lib/rmon.c

@@ -7,9 +7,9 @@
 #include "data.h"
 #include "types.h"
 
-void rmonproc()
+void rmonproc(void *data)
 {
-	// empty
+	if (data);
 }
 
 bool rmon_is_disabled(void)