Thanks Romain,

looks the same here. So the path is the same, but it seems, that the padding is 
different. I would like to understand what happens when I call 
compileAttributes. Is there anywhere a linking involved with Rcpp.so or 
Rcpp.dylib? 


Best

Simon


On 02 Nov 2013, at 09:57, Romain Francois <[email protected]> wrote:

> Le 02/11/2013 09:35, Simon Zehnder a écrit :
>> First, I didn’t. But for getting some output from the functions in 
>> attributes.cpp I later compiled the Rcpp package from source. When I compile 
>> with the option “-headerpad_max_install_names” the compileAttributes runs 
>> without an error. If I compile without this flag, I get the pointer error.
>> Problems with header padding is a well-known issue on the Mac 
>> (https://svn.boost.org/trac/boost/ticket/1927), usually in frameworks. It is 
>> used a relative path in the sections of shared objects (sometimes also in 
>> dynamic libs). When the library/shared object has to be included in other 
>> libraries, the relative path has to be changed to an absolute path. If then 
>> there is not enough space in the header of the Mach-O file, it gives you an 
>> exception.
>> 
>> But my guess is for the compileAttributes function, that no library binding 
>> is done, though it takes library paths as arguments when calling ‘.Call’. My 
>> perception has been so far, that this function solely creates the 
>> RcppExports.cpp and *.R files without any compilation or linking (this is 
>> done later, when we compile the package with the attributes). The 
>> depends/linkingto names from the DESCRIPTION file are used for headers in 
>> the RcppExports.cpp file I have guessed. The point, that I am seemingly the 
>> only one, that encounters this error, points me to my compiler (gcc4.8.2). 
>> Could be, that under the hood clang uses already a larger header padding.
>> 
>> Btw: When you are on Mac, could you check what “otool -L Rcpp.so” give you? 
>> Is the path relative (Rcpp.so) or absolute (has it something like 
>> @exectuable_path in front)?
> 
> $ otool -L Rcpp.so
> Rcpp.so:
>       Rcpp.so (compatibility version 0.0.0, current version 0.0.0)
>       /Library/Frameworks/R.framework/Versions/3.0/Resources/lib/libR.dylib 
> (compatibility version 3.0.0, current version 3.0.2)
>       
> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 
> (compatibility version 150.0.0, current version 855.11.0)
>       /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 
> 120.0.0)
>       /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current 
> version 1197.1.1)
> 
> 
>> Best
>> Simon
>> 
>> On 02 Nov 2013, at 01:02, Hadley Wickham <[email protected]> wrote:
>> 
>>> Did you install Rcpp from source? That's what I had to do to solve a 
>>> similar problem.
>>> 
>>> Hadley
>>> 
>>> On Friday, November 1, 2013, Simon Zehnder wrote:
>>> Same thing actually on my side: I had a hardware crash lately with 10.8 and 
>>> made fresh install after formatting my harddrive NSA-style :)
>>> 
>>> Afterwards I compiled R 3.0.1 and from macports the gcc48 port as well as 
>>> gettext. Then, Mavericks came and I updated - nothing worked anymore: I 
>>> reinstalled gcc48 port and deleted R 3.0.1. Then I installed gcc4.8.2 from 
>>> http://hpc.sourceforge.net, Xcode Command line tools for Mavericks and 
>>> XQuartz 4.7.2. I work with environment modules, where I can load a certain 
>>> compiler with its needed environment variables. With gcc 4.8.2 I installed 
>>> R-3.0.2 and then the packages. Always have to type “module load 
>>> compilers/gcc-4.8.2 before starting R, but that doesn’t bother me … I still 
>>> can use openMP to its great extent :)
>>> 
>>> My problem is linked to the install_name_tool and the way on Mac OS paths 
>>> are set and replaced in dynamic libraries …  this could of course be caused 
>>> by “older tools” like the llvm-gcc4.2 “laying” around…. though locate does 
>>> not find them….
>>> 
>>> 
>>> 
>>> On 01 Nov 2013, at 20:33, Dominick Samperi <[email protected]> wrote:
>>> 
>>>> My original attempt to update to Mavericks failed (unrelated hardware 
>>>> issue), and this
>>>> may have actually worked in my favor. It forced me to install Mac OS X 
>>>> 10.8 from
>>>> scratch, a "clean" install, that I later upgraded to Mavericks. If you 
>>>> upgraded from
>>>> an existing configuration you may have old tools (like llvm-g++-4.2) 
>>>> laying around
>>>> that could cause problems.
>>>> 
>>>> 
>>>> On Fri, Nov 1, 2013 at 3:02 PM, Simon Zehnder <[email protected]> wrote:
>>>> I read through all the thread answers and my variables in the Makeconf are 
>>>> the same alsso I installed the Xcode Command Line Tools for Mavericks. Are 
>>>> there any other apps and libs that have been to be updated? (I do not use 
>>>> brew). What remains is the following:
>>>> 
>>>> Compiling Rcpp give the pointer exception (when calling 
>>>> compileAttributes), also encountered in the thread you referred to.
>>>> 
>>>> Compiling Rcpp and adding the flag “-headerpad_max_install_names” lets the 
>>>> compileAttributes function do its work without any exception. My next 
>>>> guess is: possibly the gettext library…
>>>> 
>>>> Best
>>>> 
>>>> Simon
>>>> 
>>>> On 01 Nov 2013, at 19:20, Dominick Samperi <[email protected]> wrote:
>>>> 
>>>>> In your original post you mention the "pointer being freed was not 
>>>>> allocated" error message. I have just tracked this down in another 
>>>>> context (Octave
>>>>> under Mac OS X). In my case the error occurs on the dlopen() call for
>>>>> an R package shared library. The fix was to make sure all apps and libs
>>>>> are updated after moving to Mavericks. See the thread in rcppoctave-users
>>>>> list for a blow-by-blow description.
>>>>> 
>>>>> 
>>>>> On Fri, Nov 1, 2013 at 1:11 PM, Simon Zehnder <[email protected]> 
>>>>> wrote:
>>>>> You are right, working with apple and C++ is often a mess. Up to now, 
>>>>> llvm does not yet support openmp. It is coming but I do not see it fully 
>>>>> implemented before next summer. If I want to use openmp I have thus to 
>>>>> rely on the gcc which brings a lot of problems with it and from what I 
>>>>> read on the R-lists most of the Mac Users suffer. I guess that this time 
>>>>> a reinstall of R was unavoidable for most of us. I thought about using 
>>>>> the xcrun —find gcc/g++ etc. to get what is needed in a Makevars but this 
>>>>> does not give anything so far.
>>>>> 
>>>>> 
>>>>> On 01 Nov 2013, at 17:50, Dominick Samperi <[email protected]> wrote:
>>>>> 
>>>>>> With Apple moving from gcc/g++ to LLVM/clang++ I guess it makes sense
>>>>>> for R/Rcpp to use the LLVM/clang++ tool chain eventuallly, but I don't 
>>>>>> know
>>>>>> if there are plans to do this. Otherwise, the R community would need to
>>>>>> support "MACtools" following the model provided by "Rtools" under 
>>>>>> Windows...
>>>>>> 
>>>>>> 
>>>>>> On Fri, Nov 1, 2013 at 12:12 PM, Simon Zehnder <[email protected]> 
>>>>>> wrote:
>>>>>> Hi Dominick,
>>>>>> 
>>>>>> I did install files from brew but instead used the gcc from 
>>>>>> http://hpc.sourceforge.net
>>>>>> 
>>>>>> 
>>>>>> On 01 Nov 2013, at 16:55, Dominick Samperi <[email protected]> wrote:
>>>>>> 
>>>>>>> If you depend on tools installed using brew, you might want to try
>>>>>>> removing those that were installed before the Mavericks update,
>>>>>>> using:
>>>>>>> rm -rf /usr/local/Cellar
>>>>>>> brew prune
>>>>>>> brew doctor
>>>>>>> brew install <what-you-need>
>>>>>>> 
>>>>>>> 
>>>>>>> On Fri, Nov 1, 2013 at 11:19 AM, Simon Zehnder <[email protected]> 
>>>>>>> wrote:
>>>>>>> Point landing J.J.!
>>>>>>> 
>>>>>>> I already compiled a new R when Mavericks came out with a newly 
>>>>>>> installed a gcc-4.8.2, that I can load via environment modules. I also 
>>>>>>> installed th
>>> 
>>> 
>>> --
>>> Chief Scientist, RStudio
>>> http://had.co.nz/
>> 
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> 
> 
> -- 
> Romain Francois
> Professional R Enthusiast
> +33(0) 6 28 91 30 30
> 
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