Don't link to rt anymore as it makes dlopen leak - we now use nanosleeps to achieve the same goal (a loop + timeout). No longer put / at the end of directories, instead prefix like so RC_LIBDIR "/foo" to ensure more robust code.

src/rc.h

@@ -19,6 +19,7 @@
 
 #include <sys/types.h>
 #include <stdbool.h>
+#include <stdio.h>
 
 /* Special level names */
 #define RC_LEVEL_SYSINIT    "sysinit"