(compile -s -O3 -d1 "giflib.scm" -J -lgif)
(compile -s "giflib.import.scm")

(compile -s -O4 -d1 "giflib-imlib2.scm" -J -lgif)
(compile -s "giflib-imlib2.import.scm")

(install-extension
 'giflib
 '("giflib.so" "giflib.import.so"
   "giflib-imlib2.so" "giflib-imlib2.import.so")
 '((version "0.1")))