;; some reason, unicode support is not correctly installed
;; when calling this in 'installer-builder'.
(setenv "LANG" "en_US.UTF-8")
- (execl #$(program-file "installer-real" installer-builder)
+ (execl #$(program-file "installer-real" installer-builder
+ #:guile guile-3.0-latest)
"installer-real"))))