In C++ read.h needs <sys/types.h>. Don't know if this should be fixed

here (where we could concievably check for HAVE_SYS_TYPES_H or in
read.h (where it would be inde via cdio_config.h, but for now we'll do
it this way.

lib/cdio++/stub.cpp

@@ -1,2 +1,3 @@
+#include <sys/types.h>
 #include <cdio++/cdio.hpp>