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<== Date ==> <== Thread ==>

Subject: Re: EPICS 7.0.1-pre1 -- vxWorks 6.2
From: Timo Korhonen <Timo.Korhonen@esss.se>
To: Andrew Johnson <anj@aps.anl.gov>, "core-talk@aps.anl.gov" <core-talk@aps.anl.gov>
Date: Wed, 29 Nov 2017 09:02:58 +0000
Hi Andrew,



On 29/11/17 01:05, "core-talk-bounces@aps.anl.gov on behalf of Andrew
Johnson" <core-talk-bounces@aps.anl.gov on behalf of anj@aps.anl.gov>
wrote:

>Hi Timo,
>
>On 11/28/2017 10:46 AM, Timo Korhonen wrote:
>> Referring to Dirk's request earlier in this chain:
>> 
>> So it would be nice to have an option in one of the CONFIG files to
>> declare that a specific architecture should build EPICS 7 without PVA
>> support.
>> 
>> 
>> If I understand the intention right, he would like to be able to build
>>the
>> EPICS 7 base for many architectures but so that not all of them are
>> required to support PVA.
>> 
>> I think that is a legitimate request: this way he can keep up with the
>> other updates in the base and does not have to abandon (at least
>> immediately) those architectures that are not able to support PVA.
>> 
>> I think this could make the adoption of EPICS 7 easier not only for Dirk
>> but for other sites, too. The change does not look impossible to me.
>
>I agree that this is worthwhile goal, but I'm not sure how easy it will
>be to implement at this stage. The complication is that GNUmake descends
>through the tree just once, and it's not until it gets to the bottom
>Makefiles that it decides which target architectures to compile the code
>for. I don't want to have to edit every Makefile and put a conditional
>test in them, but I might be able to do something in the modules' own
>configure/CONFIG files.
>
>I can't promise anything for the -rc1, but I will try to implement
>something for the final release if I can do so cleanly.


Yes, on the bus back home from work I started to think and realised that
this is probably not as straightforward as I first thought. But it would
be a good thing to achieve. Thanks for considering it.

Timo




>
>- Andrew
>
>-- 
>Arguing for surveillance because you have nothing to hide is no
>different than making the claim, "I don't care about freedom of
>speech because I have nothing to say." -- Edward Snowdon


References:
EPICS 7.0.1-pre1 Andrew Johnson
Re: EPICS 7.0.1-pre1 Dirk Zimoch
Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Dirk Zimoch
Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Dirk Zimoch
Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Hartman, Steven M.
Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Timo Korhonen
Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Andrew Johnson

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