Index: Makefile
===================================================================
--- Makefile	(revision 1186)
+++ Makefile	(revision 1187)
@@ -26,6 +26,8 @@
 tester.diff: tester.stdout
 	diff -u tester.ref tester.stdout
 
+../../pcb-printf.o: ../../pcb-printf.c ../../pcb-printf.h
+
 clean:
 	rm tester tester.o 2>/dev/null ; true