[fedora-virt] a few comment about the current virt pacakges

[Farkas Levente]

Daniel P. Berrange wrote:
> On Fri, May 22, 2009 at 09:41:01PM +0200, Farkas Levente wrote:
>> Daniel P. Berrange wrote:
>>> On Fri, May 22, 2009 at 02:04:28PM +0200, Farkas Levente wrote:
>>>> Daniel P. Berrange wrote:
>>>>> On Fri, May 22, 2009 at 01:23:06PM +0200, Farkas Levente wrote:
>>>>>> Daniel P. Berrange wrote:
>>>>>>> On Fri, May 22, 2009 at 11:23:01AM +0200, Farkas Levente wrote:
>>>>>>>> - libvirt BR qemu. why? which require all qemu package which require
>>>>>>>> openbios-ppc, vgabios, bochs-bios-data, etherboot-*. so this is a
>>>>>>>> dependency hell. imho it'd be useful to clean up!
>>>>>>> The build process wants QEMU so its a BR. There is no dependancy hell
>>>>>>> here unless you're using the wrong tools. mock trivially pull in the 
>>>>>>> chain of deps as needed during build, so there's nothing to 'clean up'.
>>>>>> i can't build (since i don't have ppc) but i need it for qemu-system-ppc
>>>>>> which is needed by qemu which is needed by libvirt:-(
>>>>>> are you sure all of these req and br are required?
>>>>> You're not making any sense here. You don't need a ppc host, to build
>>>>> qemu-system-ppc. All host architectures can build all QEMU targets,
>>>>> you're not restricted to matching host & qemu target, with the exception
>>>>> of KVM.
>>>> i wrote above i can't build openbios-ppc which required by qemu etc...so
>>>> i can't build libvirt:-(
>>> Then just disable the qemu-system-ppc bits in QEMU. It really isn't hard 
>>> to remove the ppc sub-RPM and change the target-list  for the QEMU build 
>>> to turn off ppc.
>> this means even on a primary platform ix86 these packages can't be
>> rebuild without modification.
>> wouldn't be easier to put back openbios-ppc, vgabios, bochs-bios-data,
>> etherboot into qemu?
> 
> These packages were split out from QEMU because, they were duplicating 
> functionality in Bochs & QEMU packages. It was also not clear that they 
> were in compliance with the license, because there was no corresponding
> source to the pre-built binary being shipped. You fundamentally can't
> build many of these packages on all archs. This last reason is the real
> key bit. openbios-ppc can only be built from source on a PPC host, so
> we need to build on PPC, and then include that built binary on a 2nd
> build on all other archs. The only practical way todo this is if the
> BIOS is separate from QEMU, otherwise you end up havig to rebuild far
> too much stuff each time. 

and if qemu do not require qemu-system-ppc which do not require
openbios-ppc then those part which will run on ix86 can be build on ix86...

-- 
  Levente                               "Si vis pacem para bellum!"