(compile -s -O2 -d1 hexgrid.scm -j hexgrid)
(compile -s hexgrid.scm -O2 -d0)

(install-extension
 ;; Name of your extension:
 'hexgrid
 ;; Files to install for your extension:
 '("hexgrid.so" "hexgrid.import.so")
 ;; Assoc list with properties for your extension:
 '((version "0.1.1")))