Re: [Qemu-devel] [RFC PATCH 0/4] per-object libraries

[Paolo Bonzini]

Il 01/07/2013 16:46, Andreas Färber ha scritto:
>> > 
>> > What's wrong with a single makefile for everything, except
>> > of the need to use full pathnames from the top-level source
>> > dir?
> In short the problem we ran into was missing *.d inclusions.
> This got fixed by automatically expanding net/ to -include
> net/Makefile.objs and -include net/*.d or so.

I don't think that's the problem.  Simply I don't think that listing
1000 object files in a single makefile are manageable.  Choosing the
right directory per-target is also much easier if you can just do

        obj-y += hw/$(TARGET_BASE_ARCH)/

instead of long if-elseif-elseif-elseif-endif conditionals.

Conflicts in a small file are also way easier to solve, even if there
are more conflicting files.

If you prefer to have _everything_ in a single file, you just have to
post patches and justify them.  I just doubt that the result will be
better than what we have today, and the time would be better invested in
cleaning up what we have today.

Paolo