First, compile libiconv from source and install it in an alternate location. I installed it on /usr/local (be sure to leave system’s libiconv alone).
go to https://www.gnu.org/software/libiconv/#downloading to download last version of libiconv
cd libiconv-1.14 ./configure --prefix=/usr/local make sudo make install cd ../R-3.2.0 make clean export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH ./configure make make install
