I'm have a lot of difficulty implementing the actions suggested so far by those who've chimed in about this issue. I've resolved now to do the following:

* make clean and make world on xen source, and capture build logs

* look up libxl build logs and see what compiler flags were used

* repeat above for libvirt source and virt-manager source

* report back on the compiler flag differences I'm seeing, if any.

I think that's probably the best I can hope to accomplish without getting further lost in the weeds. If I can do this then maybe it will inform further steps.

Wayne

On Wed, Mar 4, 2015 at 7:17 AM, Wayne Mills <wmills.on.gm@gmail.com> wrote:

Thanks Guido, unfortunately no luck:

root@<server>:~/debian# grep DEB_CONFIGURE_EXTRA_ARGS *
grep: apparmor: Is a directory
grep: patches: Is a directory
grep: source: Is a directory
root@<server>:~/debian#
root@<server>:~/debian#
root@<server>:~/debian#
root@<server>:~/debian# grep DEB_CONFIGURE_EXTRA_ARGS */*
root@<server>:~/debian#
root@<server>:~/debian#
root@<server>:~/debian# grep DEB_CONFIGURE_EXTRA_ARGS */*/*
grep: */*/*: No such file or directory
root@<server>:~/debian#

On Wed, Mar 4, 2015 at 3:01 AM, Guido Günther <agx@sigxcpu.org> wrote:
On Tue, Mar 03, 2015 at 02:31:27PM -0500, Wayne Mills wrote:
> I downloaded and untarred the deb package and grepped for 'configure', but
> none of the hits were configure commands. Is there a better way to find it?

Assuming this is still based on the Debian package look for
DEB_CONFIGURE_EXTRA_ARGS in debian/rules.

Cheers,
-- Guido