[R-SIG-Mac] Lost Library ?

[Dominik Beck]

Please look here: http://apple.stackexchange.com/questions/208764/cant-write-to-usr-lib

Sounds like a security feature OS X El Capitan.

Best regards,
Dominik

Sent from my iPhone, pls excuse typos and brevity.

> On 07.09.2016, at 09:13, Rainer M Krug <Rainer at krugs.de> wrote:
> 
> Roger Koenker <rkoenker at illinois.edu> writes:
> 
>> This is a question about how to find a lost library needed for the gurobi R package.
>> Gurobi is a optimization system with various frontends including to R.
>> Even though I realize that few of you use, or may even know about, gurobi I hope
>> that there may be  some generic advice — my first  dubious attempts, contrary to Simon’s
>> periodic advice that use of DYLD_LIBRARY_PATH is frowned upon,  have proven futile.
>> Here is the basic story:
>> 
>> I've installed gurobi and its license file and this seems to work on a test problem from the command line,
>> but I would like to use the R package interface and have installed the R binary package that comes with
>> the gurobi download on a R 3.3.0 system on an osx 10.11.5 machine,   As far as I can see there is no
>> source version of the R package available.   The package “seems to” install, but I now see in R:
>> 
>>> library(gurobi)
>> Loading required package: gurobi
>> Loading required package: slam
>> Error in dyn.load(file, DLLpath = DLLpath, ...) : 
>>  unable to load shared object '/Library/Frameworks/R.framework/Versions/3.3/Resources/library/gurobi/libs/gurobi.so':
>>  dlopen(/Library/Frameworks/R.framework/Versions/3.3/Resources/library/gurobi/libs/gurobi.so, 6): Library not loaded: libgurobi65.so
>>  Referenced from: /Library/Frameworks/R.framework/Versions/3.3/Resources/library/gurobi/libs/gurobi.so
>>  Reason: image not found
>> 
>> the library libgurobi65.so is sitting in /usr/local/lib so I don't understand why the
>> R process can't find it -- this is what the R package library thinks:
> 
> This indicates, that you installed gurobi using homebrew?
> 
> How did you install the R package? Did you install it as a binary? If
> yes, then install it type="source" so that it is compiled with the
> correct library paths.
> 
> If both assumptions are wrong: how did you install R, gurobi and the R
> packages?
> 
> Cheers,
> 
> Rainer
> 
>> 
>> yzzy: otool -L g*
>> 
>> gurobi.so:
>>    gurobi.so (compatibility version 0.0.0, current version 0.0.0)
>>    libgurobi65.so (compatibility version 6.5.0, current version 6.5.2)
>>    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1197.1.1)
>>    /Library/Frameworks/R.framework/Versions/3.2/Resources/lib/libR.dylib (compatibility version 3.2.0, current version 3.2.2)
>>    /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 855.17.0)
>> 
>> Many thanks for your help,
>> Roger
>> 
>> url:    www.econ.uiuc.edu/~roger            Roger Koenker
>> email    rkoenker at uiuc.edu            Department of Economics
>> vox:     217-333-4558                University of Illinois
>> fax:       217-244-6678                Urbana, IL 61801
>> 
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> 
> -- 
> Rainer M. Krug
> email: Rainer<at>krugs<dot>de
> PGP: 0x0F52F982
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