On May 30, 2014, at 6:07 AM, Dominic Steinitz <[email protected]> wrote:
> My googling skills are failing. I want to install a package which relies on
> R. This currently works on windows and linux. When I try it on my macbook I
> get told
>
>> Configuring H-0.1.0.0...
>> Warning: Instead of 'ghc-options: -cpp' use 'extensions: CPP'
>> cabal: The pkg-config package 'libR' version >=3.0 is required but it
>> could
>> not be found.
>> Failed to install H-0.1.0.0
>> Updating documentation index /Users/dom/Library/Haskell/doc/index.html
>> cabal: Error: some packages failed to install:
>> H-0.1.0.0 failed during the configure step. The exception was:
>> ExitFailure 1
>
> But I have R installed
>
>> $ R --version
>> R version 3.0.2 (2013-09-25) -- "Frisbee Sailing"
>> Copyright (C) 2013 The R Foundation for Statistical Computing
>> Platform: x86_64-apple-darwin10.8.0 (64-bit)
>
>
> It seems the installer for the package uses pkg-config to check for the
> existence of R.
>
>> $ pkg-config --version
>> 0.28
>
>
> It finds e.g. the gnu scientific library
>
>> $ pkg-config --libs gsl
>> -L/usr/local/Cellar/gsl/1.16/lib -lgsl -lgslcblas -lm
>
>
> But can’t find R
>
>> $ pkg-config --libs R
>> Package R was not found in the pkg-config search path.
>> Perhaps you should add the directory containing `R.pc'
>> to the PKG_CONFIG_PATH environment variable
>> No package 'R' found
>
>
> On my installation, R lives in
>
>> /Library/Frameworks/R.framework
>
> In order to use pkg-config, it seems I need a .pc file somewhere but I can’t
> find one.
>
> Can someone either tell me where the .pc file is for R or alternatively how
> to tell the installer where to find R?
>
Mac OS X has no pkg-config, so that's why native version of R has no R.pc. It
seems that whatever you are compiling doesn't have native OS X support. Since
you are already mixing brewed and native code, you may as well just use brew
entirely since you've already entered murky waters. I didn't test, but I would
presume that it gives you a non-framework installation of R which may provide
R.pc.
How to tell the installer to find R is a question you should pose to the
authors of whatever you're trying to compile, R has no control over that. Note
that the canonical way to obtain R flags is via `R CMD config` so I'd say this
is a bug in the package you're compiling - it should be using R CMD config
--cppflags and R CMD config --ldflags instead of pkg-config -- it may use
pkg-config as a fallback, but is should support R CMD config in the first place.
Finally, you could hand-craft libR.pc which points to the native installation
of R - it could look something like
rhome=/Library/Frameworks/R.framework/Resources
rincludedir=/Library/Frameworks/R.framework/Headers
Name: libR
Description: R as a library
Version: 3.1.0
Libs: -F/Library/Frameworks/R.framework/.. -framework R -llzma -lz -licucore
-lm -liconv
Cflags: -I${rincludedir}
Libs.private:
Untested and, again, the proper way is to use
R CMD config --cppflags
R CMD config --ldflags
Cheers,
Simon
> Many thanks
>
> Dominic Steinitz
> [email protected]
> http://idontgetoutmuch.wordpress.com
>
> _______________________________________________
> R-SIG-Mac mailing list
> [email protected]
> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>
_______________________________________________
R-SIG-Mac mailing list
[email protected]
https://stat.ethz.ch/mailman/listinfo/r-sig-mac
