spark-git currently conflicts with the spark im client. Short of renaming the other one "spark-im", I've submitted a proposal for sparklines-git instead. I also renamed the binary itself sparklines so not to create a conflict with the spark im client (whose binary is also called spark).
https://aur.archlinux.org/packages/spark-git/ https://aur.archlinux.org/packages/sparklines-git/ J. Leclanche
