[R-SIG-Mac] Problem with Rcpp on R-3.4 beta (r72492)

[Qiu Xiaojie]

Hi R developers, 

We see the same problem and found that re-install all package with the 
argument "type = 'source" solves this problem. I don't know what is the 
reason for this but someone may answer it. 

On Friday, April 7, 2017 at 2:11:26 AM UTC-7, Berend Hasselman wrote:
>
>
> Hi, 
>
> I have downloaded and installed R from R-3.4-r72492-branch-el-capitan.pkg. 
> My OS: OS X El Capitan (10.11.6) 
>
> My packages and all additional tests of these are working correctly. 
>
> I can install Rcpp. 
> Packages requiring Rcpp however don't seem to install or run. 
>
>
> Running otool -L on 
> /Library/Frameworks/R.framework/Versions/3.4/Resources/library/Rcpp/libs/Rcpp.so 
>
> gives 
>
> Rcpp.so: 
>         Rcpp.so (compatibility version 0.0.0, current version 0.0.0) 
>         /Library/Frameworks/R.framework/Versions/3.4/Resources/lib/libR.dylib 
> (compatibility version 3.4.0, current version 3.4.0) 
>         /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 
> (compatibility version 150.0.0, current version 1259.0.0) 
>         /usr/local/clang4/lib/libc++.1.dylib (compatibility version 1.0.0, 
> current version 1.0.0) 
>         /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current 
> version 1226.10.1) 
>
>
> I don't have  /usr/local/clang4/lib/libc++.1.dylib. 
> I wouldn't know where to get it from. AFAIK The macOS Commandline Tools do 
> not install stuff in /usr/local. 
> If this isn't a mishap: where do we get the necessary libc++.1.dylib from? 
>
> Berend Hasselman 
>
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>
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