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

Berend Hasselman bhh at xs4all.nl
Tue Apr 18 19:24:47 CEST 2017


Thanks for the info.
I have downloaded R 3.4.0 RC r72531.
And installed clang 4.0.0 as you advised.

I already had Coudert's gfortran 6.1.

My Fortran packages checked without any problems; to be expected.

I am also in the possession of a private package (made by an ex colleague) that uses C++.
I did notice that this particular package linked to /usr/lib/libc++.1.dylib and NOT the one the binary version of Rcpp links to (/usr/local/clang4/lib/libc++.1.dylib).

However the "official" version of my package nleqslv which uses Fortran links to (a.o.) /Library/Frameworks/R.framework/Versions/3.4/Resources/lib/libgfortran.3.dylib as one would expect.

I also got the impression that R CMD check/INSTALL still uses Apple's clang++ and not the clang4 version..

What do I need to do (e.g. in my Makevars) to get  C++ stuff for R to use clang4 and its dylibs?
Or will this be "fixed" in the final release of R 3.4.0?  And just wait for the official release and package for R3.4.0?


> On 18 Apr 2017, at 16:06, Simon Urbanek <simon.urbanek at r-project.org> wrote:
> Berend,
> R for El Capitan is using clang 4.0.0 - you may need to install it from
> http://r.research.att.com/libs/clang-4.0.0-darwin15.6-Release.tar.gz
> In most cases you may get away with Apple clang, but likely not for new C++ features.
> We will provide an official package soon with the R release.
> Please keep testing and report issues - the changes for R 3.4.0 have been more radical as we target more recent macOS for better performance and features.
> Thanks,
> Simon
>> On Apr 7, 2017, at 5:11 AM, Berend Hasselman <bhh at xs4all.nl> 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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>> R-SIG-Mac at r-project.org
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