ArchInstallation - plepe/mapnik GitHub Wiki
Installing Mapnik on Arch Linux
Mapnik is available as a community package. To install it, just run:
# pacman -Sy mapnik
Mapnik 2 from Git
If for any reason you want to build Mapnik from source, a package description is available in the Arch User Repository for easy building with ABS: mapnik-git (this will compile the latest development version from the Git master branch).
If you use Yaourt or a similar AUR helper, just install the 'mapnik-git' package:
$ yaourt -S mapnik-git
This will handle downloading, building and installing Mapnik with dependencies from the 'extra' and 'community' repositories.