(List
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('LANG', {[LIT_CHARS C]})])
  (= scope=<EAssignScope.GLOBAL 1> flags=1 words=[{[LIT_CHARS LANG]}] bindings=[])
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('LC_ALL', {[LIT_CHARS C]})])
  (= scope=<EAssignScope.GLOBAL 1> flags=1 words=[{[LIT_CHARS LC_ALL]}] bindings=[])
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('LC_COLLATE', {[LIT_CHARS C]})])
  (= scope=<EAssignScope.GLOBAL 1> flags=1 words=[{[LIT_CHARS LC_COLLATE]}] bindings=[])
  (If
    (Com {[LIT_OTHER "["]} {[VarSub #]} {[LIT_CHARS -lt]} {[LIT_CHARS 2]} {[LIT_OTHER "]"]})
    (List
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Usage: "][VarSub 0][LIT_CHARS " awk output_file header_files"]]})
      (Com {[LIT_CHARS exit]} {[LIT_CHARS 1]})
    )
  )
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('awk', {[DQ [VarSub 1]]})])
  (Com {[LIT_CHARS shift]})
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('symsfile', {[DQ [VarSub 1]]})])
  (Com {[LIT_CHARS shift]})
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('symsfile_tmp', {[DQ [VarSub symsfile][LIT_CHARS .][VarSub $][LIT_CHARS ".tmp~"]]})])
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('proto_src', {[DQ [ComSub (Pipeline (Com {[LIT_CHARS echo]} {[VarSub @]}) (Com {[LIT_CHARS tr]} {[SQ <LIT_CHARS " ">]} {[SQ <LIT_CHARS "\\n">]}) (Com {[LIT_CHARS sort]}) (Com {[LIT_CHARS uniq]}) )]]})])
  (Com {[LIT_CHARS echo]} {[LIT_CHARS creating]} {[VarSub symsfile]})
  (Com {[LIT_CHARS mkdir]} {[LIT_CHARS -p]} {[ComSub (Com {[LIT_CHARS dirname]} {[VarSub symsfile]})]})
  (Com {[LIT_CHARS cat]}
    <
    (FilenameRedirectNode filename={[VarSub symsfile_tmp]} <REDIR_GREAT ">"> 1),
    (HereDocRedirectNode here_end='EOF' do_expansion=True body_word={[DQ [LIT_CHARS "# This file is autogenerated, please DO NOT EDIT\n"][LIT_CHARS "{\n"][LIT_CHARS "    global:\n"]]} <REDIR_DLESS "<<"> 0),
    >
  )
  (For i [{[VarSub proto_src]}])
    (Pipeline
      (Com {[VarSub awk]} {[LIT_CHARS -f]} {[ComSub (Com {[LIT_CHARS dirname]} {[VarSub 0]})] [LIT_CHARS /mksyms.awk]} {[VarSub i]})
      (Com {[LIT_CHARS sort]}
        <
        (FilenameRedirectNode filename={[VarSub symsfile_tmp]} <REDIR_DGREAT ">>"> 1),
        >
      )
    )
  )
  (Com {[LIT_CHARS cat]}
    <
    (FilenameRedirectNode filename={[VarSub symsfile_tmp]} <REDIR_DGREAT ">>"> 1),
    (HereDocRedirectNode here_end='EOF' do_expansion=True body_word={[DQ [LIT_CHARS "\n"][LIT_CHARS "    local: *;\n"][LIT_CHARS "};\n"]]} <REDIR_DLESS "<<"> 0),
    >
  )
  (If
    (Com {[LIT_CHARS cmp]} {[LIT_CHARS -s]} {[VarSub symsfile]} {[VarSub symsfile_tmp]}
      <
      (FilenameRedirectNode filename={[LIT_CHARS /dev/null]} <REDIR_GREAT "2>"> 2),
      >
    )
    (List
      (Com {[LIT_CHARS echo]} {[DQ [VarSub symsfile][LIT_CHARS " unchanged"]]})
      (Com {[LIT_CHARS rm]} {[VarSub symsfile_tmp]})
    )
    (ElseTrue)
    (Com {[LIT_CHARS mv]} {[VarSub symsfile_tmp]} {[VarSub symsfile]})
  )
)