(compile -s -O3 -d0 with-current-directory.scm -X module-declarations -J)
(compile -s -O3 -d0 with-current-directory.import.scm)
(compile -s -O3 -d0 with-current-directory.scm -X module-declarations
         -c -no-module-registration -unit with-current-directory)

(install-extension
 'with-current-directory
 '("with-current-directory.o"
   "with-current-directory.so"
   "with-current-directory.import.so")
 '((version "0.1.0")))