Xen devel - Jul 2008 - [PATCH] Improve plumbing for calling external qemu builds

* Remove ioemu-dir before replacing it with a symlink so that
  switching between trees doesn''t go wrong.
* Remove case-based arrangement for making XEN_ROOT absolute
  and replace with $(abspath ...) since we depend on GNU make
  anyway.
* `make clean'' recurses into ioemu-dir

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>



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I wrote:
> * Remove case-based arrangement for making XEN_ROOT absolute
>   and replace with $(abspath ...) since we depend on GNU make
>   anyway.
It turns out that this is a recently-introduced GNU make feature.
I must remember to check.

The attached patch, against current tip, reverts that part of 17992
(and fixes a quoting bug that was in the previous code).

Ian.



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iwj writes ("Re: [PATCH] Improve plumbing for calling external qemu
builds"):
> diff -r 5cd4fe68b6c2 Config.mk
> --- a/Config.mk	Tue Jul 08 17:25:04 2008 +0100
> +++ b/Config.mk	Wed Jul 09 09:50:36 2008 +0100
> @@ -82,8 +82,8 @@ QEMU_REMOTE=http://www.chiark.greenend.o
>  
>  # Specify which qemu-dm to use. This may be `ioemu'' to use the
old
>  # Mercurial in-tree version, or a local directory, or a git URL.
> -CONFIG_QEMU     ?= ioemu
> -# CONFIG_QEMU   ?= ../qemu-xen.git
> +# CONFIG_QEMU     ?= ioemu
> +CONFIG_QEMU   ?= /u/iwj/work/qemu-iwj.git
>  # CONFIG_QEMU   ?= $(QEMU_REMOTE)
>  
>  # Optional components
Oh dear.  Disregard that hunk, please.  Perhaps the coffee will sink
in shortly.

Ian.

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