[R-SIG-Mac] Which command line tools for XCode 4.2.1

Prof Brian Ripley ripley at stats.ox.ac.uk
Tue Apr 16 22:24:20 CEST 2013 

On 16/04/2013 21:03, cstrato wrote:
> Dear Roy,
>
> Thank you for this info. It seems that only the versions of Xcode which
> you download from the AppStore need the Command Line Tools installed.

In our experience all versions since 4.5 do, wherever you install them 
from.   People who use long-outdated versions of tools cannot expect the 
current instructions to apply to them. And the R manual does make that 
clear:

‘Command Line Tools for Xcode’ used to be part of the Apple Developer 
Tools (‘Xcode’) but nowadays need to be installed separately. They can 
be downloaded from http://developer.apple.com/devcenter/mac/ (you will 
need to register there) or if you have a recent Xcode installed (from 
the App Store or from https://developer.apple.com/devcenter/mac/) you 
can install the command-line tools from within Xcode, from the 
‘Downloads’ pane in the ‘Preferences’.

Note 'used', 'nowadays', 'recent'.

> Nevertheless, in order to install a new version of clang I need to
> install the CLTs.

And isn't it nice of Apple to allow you to download them separately?

>
> Best regards,
> Christian
>
>
> On 4/16/13 9:51 PM, Roy Mendelssohn - NOAA Federal wrote:
>> My apologies, I didn't notice carefully that you were using Xcode
>> 4.2.1.  But Google is your friend,  Apple has changed the name of what
>> you need to download, see:
>>
>> http://comments.gmane.org/gmane.os.apple.macports.user/26340
>>
>> HTH.
>>
>> -Roy
>>
>> On Apr 16, 2013, at 12:44 PM, cstrato <cstrato at aon.at> wrote:
>>
>>> Dear Simon,
>>>
>>> Thank you for your explanation, and see below.
>>>
>>> Best regards,
>>> Christian
>>>
>>> On 4/16/13 9:30 PM, Simon Urbanek wrote:
>>>>
>>>> On Apr 16, 2013, at 3:13 PM, cstrato wrote:
>>>>
>>>>> Dear Simon,
>>>>>
>>>>> On your developer site you mention:
>>>>> "We use Xcode 4.2 but Xcode 3.2 and higher should work as well.
>>>>> Note that you will need Command Line Tools component of Xcode on
>>>>> Mac OS X 10.7 or higher."
>>>>>
>>>>> I am running OS X 10.7.5 and XCode 4.2.1 on my Mac, but have not
>>>>> downloaded the command line tools. My questions are:
>>>>>
>>>>> - why do I need the command line tools?
>>>>>
>>>>
>>>> Because Xcode no longer installs compilers, linkers etc. in the
>>>> system, so you won't be able to run them.
>>>
>>>
>>> It seems that my version of Xcode 4.2.1 does have all compilers
>>> installed, including clang, but version 3.0:
>>> $ clang -v
>>> Apple clang version 3.0 (tags/Apple/clang-211.12) (based on LLVM 3.0svn)
>>> Target: x86_64-apple-darwin11.4.2
>>>
>>>>
>>>>
>>>>> - which version do I need to download from:
>>>>> https://developer.apple.com/downloads/index.action
>>>>>
>>>>> There are e.g.
>>>>>   - Command Line Tools (OS X Lion) for Xcode - October 2012
>>>>>     (it is not mentioned which version of Xcode)
>>>>>   - Command Line Tools (OS X Lion) for Xcode - November 2012
>>>>>     (Xcode 4.3 is mentioned but it is nor clear if it works with
>>>>> 4.2.1)
>>>>>   - Command Line Tools (OS X Lion) for Xcode - April 2013
>>>>>     (Xcode 4.6.2 is mentioned but it is nor clear if it works with
>>>>> 4.2.1)
>>>>>
>>>>
>>>> It doesn't really matter (it may matter in the future, because Apple
>>>> has announced that they'll be removing llvm-gcc from Xcode) - latest
>>>> should be fine for now. The version is independent of your Xcode --
>>>> in fact if you download it by hand, you don't even need Xcode at all.
>>>>
>>>>
>>>>>   (BTW, the Preferences for Xcode 4.2.1 do not list Command Line
>>>>> Tools in the Install window.)
>>>>>
>>>>
>>>> I'm not sure what you mean by "Install window", but as Roy said,
>>>> you'll find it in the download section of the preferences.
>>>
>>>
>>> When I open the Preferences and go to the download section I see a
>>> checkbox "Check for and install updates automatically", and below the
>>> list of items, which are:
>>> - iOS 4.3 Simulator (499.2 MB)
>>> - iOS 4.0 - 4.1 Device Debugging Support (505.1 MB)
>>> - iOS 3.0 - 3.2.2 Device Debugging Support (686.3 MB)
>>> None of these three items do I want to install since the download
>>> would be 1.7 GB and my internet connection is not very fast.
>>>
>>>>
>>>>
>>>>> - do the Command Line Tools update clang/clang++?
>>>>>
>>>>
>>>> Yes
>>>
>>>
>>> This is good news.
>>>
>>>>
>>>>
>>>>> The reason for my question is that in order to compile the C++ code
>>>>> in my package with clang I need at least version 3.1 since 3.0
>>>>> results in an error.
>>>>>
>>>>
>>>> You'll need to tweak your local ~/.R/Makevars for that to work since
>>>> CRAN's R uses llvm-gcc.
>>>
>>>
>>> This seems not to be possible since then I cannot compile my C++ code
>>> at all. It seems to interfere with the ROOT framework compiled with
>>> clang and does not find an include file. My Makefile depends on the
>>> ROOT config file.
>>>
>>>>
>>>> Cheers,
>>>> Simon
>>>>
>>>>
>>>>
>>>
>>> _______________________________________________
>>> R-SIG-Mac mailing list
>>> R-SIG-Mac at r-project.org
>>> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>>
>> **********************
>> "The contents of this message do not reflect any position of the U.S.
>> Government or NOAA."
>> **********************
>> Roy Mendelssohn
>> Supervisory Operations Research Analyst
>> NOAA/NMFS
>> Environmental Research Division
>> Southwest Fisheries Science Center
>> 1352 Lighthouse Avenue
>> Pacific Grove, CA 93950-2097
>>
>> e-mail: Roy.Mendelssohn at noaa.gov (Note new e-mail address)
>> voice: (831)-648-9029
>> fax: (831)-648-8440
>> www: http://www.pfeg.noaa.gov/
>>
>> "Old age and treachery will overcome youth and skill."
>> "From those who have been given much, much will be expected"
>> "the arc of the moral universe is long, but it bends toward justice"
>> -MLK Jr.
>>
>>
>
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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