Re: [Xen-devel] [PATCH] fix build error with seabios

[Christoph Egger <Christoph.Egger@xxxxxxx>]

On 04/25/12 11:20, Ian Campbell wrote:

> On Wed, 2012-04-25 at 10:13 +0100, Christoph Egger wrote:
>> On 04/25/12 11:10, Christoph Egger wrote:
>>
>>> On 04/25/12 10:52, Ian Campbell wrote:
>>>
>>>> On Wed, 2012-04-25 at 09:43 +0100, Christoph Egger wrote:
>>>>> On 04/25/12 10:07, Ian Campbell wrote:
>>>>>
>>>>>> On Tue, 2012-04-24 at 18:18 +0100, Ian Jackson wrote:
>>>>>>> Christoph Egger writes ("[Xen-devel] [PATCH] fix build error with 
>>>>>>> seabios"):
>>>>>>>>
>>>>>>>> Pass PYTHON down to seabios, so seabios will
>>>>>>>> use same python binary as whole xen tree does.
>>>>>>>> Fixes build error on NetBSD.
>>>>>>>
>>>>>>> Ian, does this look sensible to you ?
>>>>>>
>>>>>> It exports $(PYTHON) to all subdirs of tools/firmware, but I guess that
>>>>>> is OK, so we might as well take this now.
>>>>>
>>>>>
>>>>> Thanks.
>>>
>>>>>
>>>
>>>>>> Does
>>>>>> subdirs-seabios: PYTHON=$(PYTHON)
>>>>>> (or something similar) work? Might be a better option in the future
>>>>>
>>>>> No, this doesn't work.
>>>>
>>>> What about
>>>> subdir-all-seabios: PYTHON=...
>>>> ?
>>>
>>>
>>> No, doesn't work. I also tried without success:
>>>
>>> subdirs-all-seabios
>>> subdir-all-seabios-dir
>>> subdirs-all-seabios-dir
>>> seabios-dir
>>
>> I found something that works:
>>
>> subdir-all-seabios-dir:
>>      export PYTHON=$(PYTHON)
> 
> Really, that's not a syntax I've ever seen before, I've no idea how that
> works, all on the same line, sure, but on the next line like that, odd!.
> I would have thought that this would have caused "export PYTHON=
> $(PYTHON)" to be run it its own new subshell which would immediately
> exit.
> 
> Anyway, I guess if it works we might as well use this version...


No, it doesn't. It causes a subsequent seabios build error about
a missing build rule. I should have waited with reporting this
till the build finished.

Christoph

 
> 
> 
> Ian.
> 
>>
>> Christoph
>>>
>>>>>>>
>>>>>>>> Signed-off-by: Christoph Egger <Christoph.Egger@xxxxxxx>
>>>>>>
>>>>>> Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
>>>>>>
>>>>>>>>
>>>>>>>> ----------------------------------------------------------------------
>>>>>>>> diff -r ab552da976a3 tools/firmware/Makefile
>>>>>>>> --- a/tools/firmware/Makefile  Wed Apr 11 18:28:33 2012 +0200
>>>>>>>> +++ b/tools/firmware/Makefile  Fri Apr 13 16:22:23 2012 +0200
>>>>>>>> @@ -32,7 +32,7 @@ ifeq ($(CONFIG_ROMBIOS),y)
>>>>>>>>        false ; \
>>>>>>>>        fi
>>>>>>>>  endif
>>>>>>>> -      $(MAKE) subdirs-$@
>>>>>>>> +      $(MAKE) PYTHON=$(PYTHON) subdirs-$@
>>>>>>>>  
>>>>>>>>  
>>>>>>>>  .PHONY: install
>>>>>>>>
>>>>>>>> ----------------------------------------------------------------------
>>>
>>>
>>
>>
>>
> 
> 
> 



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