Consolidate library creation (Avi Kivity)

Put archive utility (ar) invocations into a rule, and have it generate
quiet output by default.
Signed-off-by: NAvi Kivity <avi@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6381 c046a42c-6fe2-441c-8c8c-71466251a162

Makefile

@@ -174,16 +174,12 @@ curses.o: curses.c keymaps.c curses_keys.h
 bt-host.o: CFLAGS += $(CONFIG_BLUEZ_CFLAGS)
 
 libqemu_common.a: $(OBJS)
-	rm -f $@ 
-	$(AR) rcs $@ $(OBJS)
 
 #######################################################################
 # USER_OBJS is code used by qemu userspace emulation
 USER_OBJS=cutils.o  cache-utils.o
 
 libqemu_user.a: $(USER_OBJS)
-	rm -f $@ 
-	$(AR) rcs $@ $(USER_OBJS)
 
 ######################################################################
 

Makefile.target

@@ -211,8 +211,6 @@ endif
 # libqemu
 
 libqemu.a: $(LIBOBJS)
-	rm -f $@
-	$(AR) rcs $@ $(LIBOBJS)
 
 translate.o: translate.c cpu.h
 

rules.mak

@@ -13,4 +13,7 @@ LINK = $(call quiet-command,$(CC) $(LDFLAGS) -o $@ $^ $(LIBS),LINK $@)
 %$(EXESUF): %.o
 	$(LINK)
 
+%.a:
+	$(call quiet-command,rm -f $@ && $(AR) rcs $@ $^,AR $@)
+
 quiet-command = $(if $(V),$1,@echo $2 && $1)