Fix "ar" flags in some Makefiles to allow for silent "make -s"
diff --git a/board/atmel/atstk1000/Makefile b/board/atmel/atstk1000/Makefile
index 22ac02a..155d46a 100644
--- a/board/atmel/atstk1000/Makefile
+++ b/board/atmel/atstk1000/Makefile
@@ -32,7 +32,7 @@
 OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
 
 $(LIB): $(obj).depend $(OBJS)
-	$(AR) crv $@ $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
 
 #########################################################################
 
diff --git a/board/v38b/Makefile b/board/v38b/Makefile
index 304deaa..b21bd6f 100644
--- a/board/v38b/Makefile
+++ b/board/v38b/Makefile
@@ -32,7 +32,7 @@
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
 $(LIB):	$(obj).depend $(OBJS)
-	$(AR) crv $@ $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
 
 clean:
 	rm -f $(SOBJS) $(OBJS)