(data_only_dirs tests)

(env
 (_
  (flags :standard -warn-error -a+8+9 -w +a-4-32-40-41-42-44-48-70 -color
    always -strict-sequence -safe-string -short-paths)
  (ocamlopt_flags :standard -O3 -color always -inline 30 -unbox-closures
    -unbox-closures-factor 20)))