On Ubuntu 16.04 and 18.04, you might get this issue when trying to install rgl from CRAN:
checking for X... no configure: error: X11 not found but required, configure aborted.
ERROR: configuration failed for package ‘rgl’
Credit is due to this blog which solved my problems at installing rgl:
http://solaimurugan.blogspot.ca/2015/09/3d-data-visualization-using-r-configure.html
In case the link above disappears, the solution, as outlined in the blog is:
sudo apt-get install xorg
sudo apt-get install libx11-dev
sudo apt-get install libglu1-mesa-dev
More recently, installing rgl on a fresh ubuntu 16.04 install also requires a further step (as noted in the comments below), if you get this error:
fatal error: ft2build.h: No such file or directory
This is solved with:
sudo apt-get install libfreetype6-dev
Then installing rgl from CRAN should just work.
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4