I need to install rvest package for R version 3.1.2 (2014-10-31)
I get these errors:
checking whether the C++ compiler supports the long long type...
My system is Ubuntu 14.04 with R:3.2.3, and I had the same problem.
Then I checked err meg and tried to install library of libcurl4-openssl-dev and libxml2-dev:
sudo apt-get install libcurl4-openssl-dev
sudo apt-get install libxml2-dev
After installed, install.packages("rvest")
was successful.