(compile -s -O2 -d1 "quaternions.scm" -j quaternions)
(compile -c -O2 -d1 "quaternions.scm" -unit quaternions)
(compile -s -O2 -d0 "quaternions.import.scm")

(install-extension
 'quaternions
 '("quaternions.o" "quaternions.so" "quaternions.import.so")
 '((version 1.0)
   (static "quaternions.o")))