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Re: add option to generate dependency graph

From: Lynn Lin
Subject: Re: add option to generate dependency graph
Date: Sun, 22 Aug 2010 11:26:08 +0800

On Sun, Aug 22, 2010 at 10:54 AM, Luke Shumaker <address@hidden> wrote:
>> > > > The attached patch adds the ``-g, --graph'' options to make; it will
>> > > > spit out a graphviz file to stdout. (The patch is against the 3.82
>> > > > release)
>> > >
>> > > I test the patch,it's great although it has bug.
>> >
>> > What bug?
>> I compile cgit project with your patch
>>     MM ui-tree.d
>>     ...
>> obviously the "MM line" doesn't follow dot format
> I suppose this is a bug, but I didn't consider it one.  True to make's
> behavior, it says what it is doing.  In this case, it is updating the
> makefiles;  I assumed it was reasonable to expect that the makefiles be
> up-to-date when making the graph.
> To trick make into updating the makefiles without updating anything, run
> something like:
>  make PHONY
> However, the updated patch I'm attaching will disable it from updating
> the makefiles when creating a graph, but be aware that the graph
> generated without the updated makefiles will not be accurate.  For most
> makefiles, cgit included, this means that dependencies on header files
> will not be included.  Looking at a few, this does make graphs more
> interesting.
> Note that this new patch is still against the 3.82 release, not my
> earlier patch.

 verify it,sound good ! Thanks

> ~ LukeShu

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