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Re: [Qemu-devel] [PATCH v2] Drop --whole-archive and static libraries

From: Blue Swirl
Subject: Re: [Qemu-devel] [PATCH v2] Drop --whole-archive and static libraries
Date: Mon, 4 Jan 2010 20:47:58 +0000

On Sun, Jan 3, 2010 at 12:31 PM, Blue Swirl <address@hidden> wrote:
> 2009/12/31 Andreas Färber <address@hidden>:
>> From: Andreas Färber <address@hidden>
>> Juan has contributed a cool Makefile infrastructure that enables us to drop
>> static libraries completely:
>> Move shared obj-y definitions to Makefile.objs, prefixed {common-,hw-,user-},
>> and link those object files directly into the executables.
>> Replace HWLIB by HWDIR, specifying only the directory.
>> Drop --whole-archive and ARLIBS in Makefiles and configure.
>> Drop GENERATED_HEADERS dependency in rules.mak, since this rebuilds all
>> common objects after generating a target-specific header; add dependency
>> rules to Makefile and Makefile.target instead.
>> v2:
>> - Don't try to include /config.mak for user emulators
>> - Changes to user object paths ("Quickfix for libuser.a drop") were obsoleted
>>  by "user_only: compile everything with -fpie" (Kirill A. Shutemov)
> Breaks build:
>  CC    i386-softmmu/i386-dis.o
> make[1]: *** No rule to make target `/loader.o', needed by `qemu'.  Stop.

I found out that completely removing the object directory and
recreating it from scratch helps. This sucks bisectability-wise, is
there any way to avoid it?

There is still one problem, tools need config-host.h but the
dependencies are not correct:
  CC    qemu-nbd.o
In file included from /src/qemu/qemu-nbd.c:19:
/src/qemu/qemu-common.h:32:25: error: config-host.h: No such file or directory

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