Re: [Qemu-devel] [PATCH V9 2/8] Buildsystem clean tests directory clearly

[Paolo Bonzini <pbonzini@redhat.com>]

Il 16/11/2012 12:01, Wenchao Xia ha scritto:
>>
>>
>> ifneq ($(wildcard config-host.mak),)
>> include $(SRC_PATH)/tests/Makefile
>> endif
>>
>> to
>>
>> -include $(SRC_PATH)/tests/Makefile
>>
>> ?
>>
>   yes, but original author seems not include tests/Makefile in
> this condition on purpose, so using MAKEFILES to keep it unchanged.

git blame tells you that the ifneq was added by commit e454e2e
(Makefile: Exclude tests/Makefile in unconfigured tree, 2012-01-17).

Instead of the ifneq, I proposed to use a minus in front of the include 
directive.  It will avoid failures if tests/Makefile does not exist.  
However, it is not very good because it will cause /tests/Makefile to 
be opened (see the commit message of e454e2e).

Perhaps an even better way to avoid the problem would be this: just move
the removal of makefile fragments to the _end_ of "make distclean":

diff --git a/Makefile b/Makefile
index 81c660f..b994109 100644
--- a/Makefile
+++ b/Makefile
@@ -203,9 +203,7 @@ qemu-ga$(EXESUF): QEMU_CFLAGS += -I qga/qapi-generated
 
 gen-out-type = $(subst .,-,$(suffix $@))
 
-ifneq ($(wildcard config-host.mak),)
 include $(SRC_PATH)/tests/Makefile
-endif
 
 qapi-py = $(SRC_PATH)/scripts/qapi.py $(SRC_PATH)/scripts/ordereddict.py
 
@@ -265,8 +263,7 @@ qemu-%.tar.bz2:
 	$(SRC_PATH)/scripts/make-release "$(SRC_PATH)" "$(patsubst qemu-%.tar.bz2,%,$@)"
 
 distclean: clean
-	rm -f config-host.mak config-host.h* config-host.ld $(DOCS) qemu-options.texi qemu-img-cmds.texi qemu-monitor.texi
-	rm -f config-all-devices.mak
+	rm -f config-host.h* config-host.ld $(DOCS) qemu-options.texi qemu-img-cmds.texi qemu-monitor.texi
 	rm -f roms/seabios/config.mak roms/vgabios/config.mak
 	rm -f qemu-doc.info qemu-doc.aux qemu-doc.cp qemu-doc.cps qemu-doc.dvi
 	rm -f qemu-doc.fn qemu-doc.fns qemu-doc.info qemu-doc.ky qemu-doc.kys
@@ -279,6 +276,7 @@ distclean: clean
 	rm -rf $$d || exit 1 ; \
         done
 	test -f pixman/config.log && make -C pixman distclean
+	rm -f config-host.mak rm -f config-all-devices.mak
 
 KEYMAPS=da     en-gb  et  fr     fr-ch  is  lt  modifiers  no  pt-br  sv \
 ar      de     en-us  fi  fr-be  hr     it  lv  nl         pl  ru     th \


With this change, no need for MAKEFILES anymore.

Paolo