RE: [Xen-devel] [PATCH] optionally skip ioemu in tools build

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

> I'm not sure if this has been discussed already, but I think 
> it should be the default to skip building tools/ioemu. 
> Skipping ioemu solves the problems associated with building 
> on machines that do not have X, and saves time for developers 
> who do not need io emulation. Attached patch to 
> tools/Makefile will skip ioemu by default unless the 
> BUILD_IOEMU environment variable is set. 

I think my preference would be to do a full build by default, so we get
alerted to build failures sooner rather than later. I know there aren't
too many VT-x users right now, but it's going to be an important part of
Xen in a few months time when the boxes start shipping. It takes 20
seconds to build ioemu on my machine, so its not really slowing the
build cycle down very much.

Perhaps we should just have a patch that skips it if the host doesn't
have X or g++ ?

Ian

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