OS X package installation depends on gfortran-4.8 - r

Question

I'm using the OS X devel version of R
R Under development (unstable) (2014-05-27 r65787)
Platform: x86_64-apple-darwin13.1.0 (64-bit)
with GNU Fortran (GCC) 4.2.3 (from Simon's site) and version 5.1.1 of Xcode's command line tools.
When building from source, I get errors like:
gfortran-4.8 -fPIC -g -O2 -c altmov.f -o altmov.o
make: gfortran-4.8: No such file or directory
I'm not sure what to do here. I could create an alias to the version I have but I'm not sure if it really needs 4.8 or not.
Thanks,
Max

Answer 1

Type these two lines in your terminal, direct quote:
curl -O http://r.research.att.com/libs/gfortran-4.8.2-darwin13.tar.bz2
sudo tar fvxj gfortran-4.8.2-darwin13.tar.bz2 -C /
It will download you the gfortran for Mavericks (which is missing in your system at the moment) and will install it in your system. At least, this solved the same problem for me
(I'm running late 2011 MacPro, Mavericks).

Answer 2

Edit: I now think this is best accomplished using Homebrew:
brew reinstall gcc48 --with-fortran
While I think the following procedure will work, it is not as clean. However, I still recommend configuring ~/.R/Makevars as described below.
To build on the answer by #TheBigMike, I used the following procedure to install gfortran-4.8 alongside homebrew, and then configured R to select this fortran compiler.
First, download and unpack gfortran 4.8:
su admin
curl -O http://r.research.att.com/libs/gfortran-4.8.2-darwin13.tar.bz2
mkdir /tmp/gfortran
tar fvxz gfortran-4.8.2-darwin13.tar.bz2 -C /tmp/gfortran
Delete the gfortran file alias that interferes with homebrew:
rm /tmp/gfortran/usr/local/bin/gfortran
Install gfortran 4.8
cp -r /tmp/gfortran/usr/local/ /usr/local
To tell R to use gfortran 4.8, create a file called ~/.R/Makevars:
mkdir -p ~/.R
touch ~/.R/Makevars
Put the following into ~/.R/Makevars:
FLIBS=""
F77="gfortran-4.8"
FC="gfortran-4.8"
Now restart R. Once R has been restarted, any packages that depend upon fortran 4.8 should now work. homebrew should be undisturbed.

Answer 3

I encountered the same problem, albeit on R Studio.
The following worked for me, although, I had to reinstall all my R packages after (note: the re-installations took awhile and look like quite a bit was going on, unsure if these were the appropriate steps, use at own risk):
Download latest R Studio version and then following in terminal:
brew install gcc
brew update && brew reinstall r
brew link --overwrite r

Answer 4

This is explained nicely in Rcpp FAQ, section 2.16. Basically you need to install gfortran (homebrew install gcc or the other way) and then modify Makeconf to point FLIBS to the relevant fortran libraries.
These were the steps which worked for me:
Install gcc48 via homebrew
Make sure that gfortran and gfortran-4.8 point to the newly installed versions.
Comment the FLIBS variable in /Library/Frameworks/R.framework/Resources/etc/Makeconf.
The step 3 was the most important one, because it is designed to work with the gfortran which is installed in the way #TheBigMike suggested, i.e. by downloading and extracting the archive gfortran-4.8.2-darwin13.tar.bz2.

Answer 5

The following worked for me on OSX High Sierra and RStudio 1.1.423:
Install gcc/gfortran via Homebrew: brew install gcc
Edit /Library/Frameworks/R.framework/Resources/etc/Makeconf and replace all instances of gfortran-4.8 with gfortran
Also replace FLIBS = -L/usr/local/lib/gcc/x86_64-apple-darwin13.0.0/4.8.2 with FLIBS = -L/usr/local/lib/gcc/7/ -lgfortran -lquadmath -lm.
Reattempt installing the package.

Answer 6

Install gcc/gfortran via Homebrew: brew install gcc
Make sure you replace it is not done automatically: /Library/Frameworks/R.framework/Resources/etc/Makeconf and replace all instances of gfortran-4.8(or any number) with gfortran
Replace FLIBS = -L/usr/local/gfortran/lib/gcc/x86_64-apple-darwin15/6.1.0 -L/usr/local/gfortran/lib -lgfortran -lquadmath -lm to
FLIBS = -L/usr/local/lib/gcc/7/ -lgfortran -lquadmath -lm
Reinstall the package for me was robustbase that was required by fpc library

Answer 7

Got the same issue and found a statement in the R cran site (https://cran.ism.ac.jp/) In the latest OSX such as High Sierra, some necessary libs are not included and these have to be installed. The page kindly explains this, quoting
Important: this release uses Clang 6.0.0 and GNU Fortran 6.1, neither
of which is supplied by Apple. If you wish to compile R packages from
sources, you will need to download and install those tools - see the
tools directory.
I resolved the issues (missing gfortran etc.) with applying the following two packages, here.
clang-6.0.0.pkg (OS X 10.11+, signed, 64-bit)
MD5-hash: c29700c4e7b2914073ef7e741eb105bc
(ca. 418Mb)
gfortran-6.1.pkg (OS X 10.11+, signed, 64-bit)
MD5-hash: 201026216e8b373d9cd2efc0cc474bb8
(ca. 73Mb)

Answer 8

This answer by thebigmike suggests:
Type these two lines in your terminal, direct quote:
curl -O http://r.research.att.com/libs/gfortran-4.8.2-darwin13.tar.bz2
sudo tar fvxj gfortran-4.8.2-darwin13.tar.bz2 -C /
but
curl -OL http://r.research.att.com/libs/gfortran-4.8.2-darwin13.tar.bz2
Solves the problem for me!

Answer 9

Updated version of RStudio (Version 0.98.1091) seems to fix this.

Answer 10

Make sure R is updated to version >= 4.0 (for previous versions this might help: https://cran.ism.ac.jp/bin/macosx/tools/)
Download and install the GNU fortran compiler found here: https://mac.r-project.org/tools/
Make sure you add /usr/local/gfortran/bin to your PATH in order to use this compiler. This can be done, e.g. by
export PATH=$PATH:/usr/local/gfortran/bin

Answer 11

If you are having trouble installing software that depends on FORTRAN on Max OS 10.15 or later. The best solution is to update R to at least version 4.0.0

Answer 12

Installing gcc via homebrew give me gfortran:
brew install gcc
Then:
$which gfortran
/usr/local/bin/gfortran