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Date: Thu, 27 Feb 2014 20:57:22 +0100
From: Stefan Weil <sw@weilnetz.de>
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Subject: Re: [Qemu-devel] git build from clean broken?
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To: Peter Maydell <peter.maydell@linaro.org>, QEMU Developers <qemu-devel@nongnu.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>, Fam Zheng <famz@redhat.com>

Am 27.02.2014 20:38, schrieb Peter Maydell:
> $ git clone  git://git.qemu.org/qemu.git
> [...]
> $ cd qemu
> $ mkdir build/a64-targets-nodbg/ && (cd build/a64-targets-nodbg/ &&
> '../../configure'
> '--target-list=aarch64-softmmu,arm-softmmu,aarch64-linux-user,arm-linux-user'
> '--cc=ccache gcc' '--disable-tools') && make -C
> build/a64-targets-nodbg/
> [...]
> make[1]: *** No rule to make target `../async.o', needed by
> `qemu-system-aarch64'. Stop.
> 
> Make seems to be able to build these files in its top level
> build directory:
> 
> make  -C build/a64-targets-nodbg async.o
> 
> but it can't build them on-demand when the targets in the
> per-target subdirectories reference them via ../object-file.o
> 
> git bisect blames this commit:
> commit ba1183da9a10b94611cad88c44a5c6df005f9b55
> Author: Fam Zheng <famz@redhat.com>
> Date:   Mon Feb 10 14:48:52 2014 +0800
> 
>     rules.mak: fix $(obj) to a real relative path
> 
> Any ideas?
> 
> thanks
> -- PMM
> 


Yes. I saw that problem, too. This patch for Makefile fixed it for me:

index ccab967,a28a3c8..8ec3a99
@@@ -170,6 -159,6 +170,7 @@@ qemu-options.def: $(SRC_PATH)/qemu-opti
  SUBDIR_RULES=$(patsubst %,subdir-%, $(TARGET_DIRS))
  SOFTMMU_SUBDIR_RULES=$(filter %-softmmu,$(SUBDIR_RULES))

++$(SOFTMMU_SUBDIR_RULES): $(block-obj-y)
  $(SOFTMMU_SUBDIR_RULES): config-all-devices.mak

  subdir-%:

Regards
Stefan W.