Make make output quieter (Avi Kivity)

Spew out less noise when compiling.  This helps review make output for
information such as compilation warnings, rather than extra long compiler
invocations.

The full output can be generated by supplying a 'V=1' parameter to make.
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@6380 c046a42c-6fe2-441c-8c8c-71466251a162

Makefile

@@ -39,7 +39,7 @@ all: $(TOOLS) $(DOCS) recurse-all
 SUBDIR_RULES=$(patsubst %,subdir-%, $(TARGET_DIRS))
 
 subdir-%:
-	$(MAKE) -C $(subst subdir-,,$@) all
+	$(MAKE) -C $(subst subdir-,,$@) V="$(V)" all
 
 $(filter %-softmmu,$(SUBDIR_RULES)): libqemu_common.a
 $(filter %-user,$(SUBDIR_RULES)): libqemu_user.a

rules.mak

 
 %.o: %.c
-	$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<
+	$(call quiet-command,$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<,CC $@)
 
 %.o: %.S
-	$(CC) $(CPPFLAGS) -c -o $@ $<
+	$(call quiet-command,$(CC) $(CPPFLAGS) -c -o $@ $<,AS $@)
 
 %.o: %.m
-	$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
+	$(call quiet-command,$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<,OBJC $@)
 
-LINK = $(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
+LINK = $(call quiet-command,$(CC) $(LDFLAGS) -o $@ $^ $(LIBS),LINK $@)
 
 %$(EXESUF): %.o
 	$(LINK)
+
+quiet-command = $(if $(V),$1,@echo $2 && $1)