[Scons-dev] Clang support

[Bill Deegan]

Pawel,

It's always been possible to set tool preference in the Environment()
creation.
As far as allowing a user to override such via local settings, that's be up
to the project using SCons.

Allowing such by default would likely cause more issues than it solves as
one of the core functional requirements of SCons is that it enables a
reproducible build regardless of the users environment.
(This is to enable production software builds, as opposed to open source
builds which typically want autoconf like behavior, which is also core
functional requirement for SCons to enable)

-Bill


On Mon, Jan 5, 2015 at 4:02 PM, Michael Jarvis <mjarvis.tx.08 at gmail.com>
wrote:

> Clang can (mostly) emulate gcc, while the reverse is not true. I would say
> default to gcc as well.
>
> On Mon, Jan 5, 2015 at 6:00 PM, Bill Deegan <bill at baddogconsulting.com>
> wrote:
>
>> I'd say on linux default to gcc.
>> If we add clang tools the user can always override them if they wish to.
>>
>> -Bill
>>
>> On Mon, Jan 5, 2015 at 3:58 PM, William Blevins <wblevins001 at gmail.com>
>> wrote:
>>
>>> Im not sure what percentage of linux devs use clang vs gcc, but my
>>> personal experience is gcc is more widely used.
>>>
>>> Yet another gcc user,
>>> William
>>> On Jan 5, 2015 6:51 PM, "Russel Winder" <russel at winder.org.uk> wrote:
>>>
>>>> On Mon, 2015-01-05 at 13:48 +0100, Paweł Tomulik wrote:
>>>> […]
>>>> > I have a project where I just set construction variables CC=clang and
>>>> > CXX=clang++ and it works well (I check existence of these compilers
>>>> with
>>>> > SConf, so I don't need the Tool machinery to search for the compiler
>>>> > executables).
>>>> >
>>>> > Some time ago I also wrote these two tools:
>>>> >
>>>> > https://github.com/ptomulik/scons-tool-clang
>>>> > https://github.com/ptomulik/scons-tool-clangpp
>>>> >
>>>> > but for some (forgotten) reason I don't use them :)
>>>>
>>>> This may work fine, but if SCons does not have tools called clang, clang
>>>> ++, clanglink *AND* detection of clang for the cc, c++ and link tools,
>>>> then SCons has no credible support for Clang.
>>>>
>>>> My real question is whether SCons should prefer clang over gcc for
>>>> Linux.
>>>>
>>>> --
>>>> Russel.
>>>>
>>>> =============================================================================
>>>> Dr Russel Winder      t: +44 20 7585 2200   voip:
>>>> sip:russel.winder at ekiga.net
>>>> 41 Buckmaster Road    m: +44 7770 465 077   xmpp: russel at winder.org.uk
>>>> London SW11 1EN, UK   w: www.russel.org.uk  skype: russel_winder
>>>>
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>>
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>
>
> --
> *Michael Jarvis*
> McKinney, TX USA
> http://about.me/michael.a.jarvis
>
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