This morning I was trying to install Gnuplot from source because I wanted generate some graphs for ApacheBench. I’m currently benchmarking one of our Rails applications using Nginx w/ Mongrels against Phusion Passenger (Nginx flavor). When “make”ing Gnuplot I received the following error:

Undefined symbols:
“_rl_ding”, referenced from:
_alert in [...]

If you’re new to Git you may be working on a branch and realize that you’ve fallen out of synch with the master. In the case of Subversion you can normally do “svn up” and be good to go. In the case git you’ll normally do a “git fetch” and then a “git status” shows [...]