Re: [Xen-devel] [PATCH] tools top level makefile cleanup

[Anthony Liguori <aliguori@xxxxxxxxxx>]

Hollis Blanchard wrote:

> Well, I guess it's not very dissimilar after all.
>
> But I really don't like that for every command to recurse with (e.g. clean), 
> you must add more hackery to the Makefile. Your snippet has the same problem 
> (let's add "clean"...), and it seems all the Makefiles have all the issues 
> discussed in different places.
> Is there really no better way to solve this problem?
>  
The following works for me.  You need a default rule or else make gets 
really confused but the wildcard rule will catch everything else.
SUBDIRS=sub sub1

all:
   @for i in $(SUBDIRS); do \
      $(MAKE) -C $$i $@; \
   done

%:
   @for i in $(SUBDIRS); do \
      $(MAKE) -C $$i $@; \
   done



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