Re: Xen-unstable 32bit build broken on 64bit systems with multiarch

[Andrew Cooper <andrew.cooper3@citrix.com>]

On 23/05/13 11:01, Ian Campbell wrote:
> On Thu, 2013-05-23 at 10:39 +0100, Andrew Cooper wrote:
>> Hello,
>>
>> Trying to build 32bit tools on a 64bit multiarch system (Debian Wheezy
>> in my case) fails.
> I'm not sure that multiarch is actually quite ready for cross building
> in the "biarch" -m32 manner, I think til now they have mostly
> concentrated on being able to cross install runtime packages and proper
> cross building (i.e. with $triplet-gcc not gcc -m32).
>
> This is all based on vague observations on e.g. Debian devel and not
> something I'm 100% sure on.
>
>> $ make XEN_TARGET_ARCH=x86_32 -j4
> [...]
>> I suspect that the issue is the lack of an -m32 for
>>
>> gcc    -Wl,-soname -Wl,libxenctrl.so.4.0 -shared -o libxenctrl.so.4.0.0
>> xc_core.opic xc_core_x86.opic xc_cpupool.opic xc_domain.opic
>> xc_evtchn.opic xc_gnttab.opic xc_misc.opic xc_flask.opic xc_physdev.opic
>> xc_private.opic xc_sedf.opic xc_csched.opic xc_csched2.opic
>> xc_arinc653.opic xc_tbuf.opic xc_pm.opic xc_cpu_hotplug.opic
>> xc_resume.opic xc_tmem.opic xc_mem_event.opic xc_mem_paging.opic
>> xc_mem_access.opic xc_memshr.opic xc_hcall_buf.opic
>> xc_foreign_memory.opic xtl_core.opic xtl_logger_stdio.opic
>> xc_pagetab.opic xc_linux.opic xc_linux_osdep.opic -ldl -lpthread
>>
>> I have tried a few ideas but not managed to get a successful build. 
>> Does anyone with more knowledge in this area have any suggestions?
> What happens if you add the -m32? Do the error messages differ?
>
> Ian.
>

With -m32, I fail to link against -lbz2 and -lz.  I thought I had
installed both variants of these libraries but I am now not so sure.

~Andrew