Lots done in move to typeless

src/cw/mavl_cmpstr.c

@@ -1,6 +1,8 @@
 #include "mavl.h"
 #include "mavltypes.h"
 
+#include <string.h>
+
 int mavl_cmpstr (const void *s1, const void *s2)
 {
 	return strcmp( *((const char**)s1), *((const char**)s2));