(List
  (Com {[LIT_CHARS set]} {[LIT_CHARS -e]})
  (If
    (Com {[LIT_OTHER "["]} {[LIT_CHARS -z]} {[DQ [VarSub 1]]} {[LIT_OTHER "]"]})
    (List
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Directory of binutils not given."]]})
      (Com {[LIT_CHARS exit]} {[LIT_CHARS 1]})
    )
  )
  (Com {[LIT_CHARS cd]} {[DQ [VarSub 1]]})
  (Com {[LIT_CHARS ./configure]} {[LIT_CHARS --enable-gold] [LIT_OTHER "="] [LIT_CHARS default]} {[LIT_CHARS --enable-threads]} {[LIT_CHARS --enable-plugins]} {[LIT_CHARS --prefix] [LIT_OTHER "="] [LIT_CHARS /build/output]})
  (Com {[LIT_CHARS make]} {[LIT_CHARS -j8]} {[LIT_CHARS all]})
  (Com {[LIT_CHARS make]} {[LIT_CHARS install]})
)