(executable
 (name foo)
 (modules foo)
 (libraries unix))

(executable
 (name cat_dir)
 (modules cat_dir)
 (libraries unix))

(rule
 (targets dir)
 (action (run ./foo.exe dir)))

(alias
 (name default)
 (deps dir))

(alias
 (name cat_dir)
 (deps dir)
 (action (run ./cat_dir.exe dir))
 )
