Allow depend creation again. This doesn't work on GNU make, but does on all others.

src/librc/Makefile

@@ -11,6 +11,8 @@ VERSION_MAP=	rc.map
 CFLAGS+=	-DLIB=\"${LIBNAME}\"
 LDADD+=		${LIBKVM}
 
+CFLAGS+=	-I$(TOPDIR)
+
 SHLIBDIR=	/${LIBNAME}
 
 include $(TOPDIR)/cc.mk

src/librc/librc.h

@@ -65,10 +65,10 @@
 
 #include "librc-depend.h"
 #include "rc.h"
-#include "../rc-misc.h"
-#include "../strlist.h"
+#include "rc-misc.h"
+#include "strlist.h"
 
-#include "../hidden-visibility.h"
+#include "hidden-visibility.h"
 #define librc_hidden_proto(x) hidden_proto(x)
 #define librc_hidden_def(x) hidden_def(x)