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Re: [Qemu-devel] [RFC PATCH v2 1/6] make.rule: fix $(obj) to a real rela

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [RFC PATCH v2 1/6] make.rule: fix $(obj) to a real relative path
Date: Mon, 09 Sep 2013 12:41:50 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8

Il 09/09/2013 03:34, Fam Zheng ha scritto:
> On Fri, 09/06 20:19, Lluís Vilanova wrote:
>> Fam Zheng writes:
>> [...]
>>> Because $(obj) here is './block', instead of '../block'. This doesn't
>>> hurt compiling because we basically build all .o from top Makefile,
>>> before entering Makefile.target, but it will affact arriving per-object
>>> libs support.
>> I'm curious. What's the reason to not use recursive make in QEMU?
> I don't know the answer, Paolo?

It predates my involvement by a long time, so I don't know.

But my guess is that whenever directories are not present in the build
tree (e.g. i386-softmmu/hw) we have to create the Makefile in the
configure script.  Thus a heavily declarative Makefile style works better.


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