(List
  (Com {[LIT_CHARS cd]} {[DQ [ComSub (Com {[LIT_CHARS dirname]} {[DQ [VarSub 0]]})]]}  )
  (If
    (DBracket {B2 BINARY_STRING_EQUAL {[ComSub (Com {[LIT_CHARS uname]})]} {[SQ <LIT_CHARS Darwin>]}})
    (List
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('LNOPTS', {[DQ [LIT_CHARS -sf]]})])
      (FunctionDef realpath []
        (Com {[LIT_CHARS python]} {[LIT_CHARS -c]} {[SQ <LIT_CHARS "import os, sys; print os.path.realpath(sys.argv[2])">]} {[VarSub @]}        )
      )
      (FunctionDef readlink []
        (If
          (DBracket {B1 UNARY_FILE_L {[DQ [VarSub 2]]}})
          (Com {[LIT_CHARS python]} {[LIT_CHARS -c]} {[SQ <LIT_CHARS "import os, sys; print os.readlink(sys.argv[2])">]} {[VarSub @]}          )
          (ElseTrue)
          (Com {[LIT_CHARS echo]} {[VarSub 2]}          )
        )
      )
    )
    (ElseTrue)
    (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('LNOPTS', {[DQ [LIT_CHARS -sTf]]})])
  )
  (If
    (DBracket {B1 UNARY_STRING_z {[DQ [VarSub GO]]}})
    (List
      (If
        (DBracket {B1 UNARY_STRING_z {[DQ [ComSub (Com {[LIT_CHARS which]} {[LIT_CHARS go]})]]}})
        (List
          (Com {[LIT_CHARS echo]} {[SQ <LIT_CHARS "You need to have go installed to build Kythe.">]}          )
          (Com {[LIT_CHARS echo]} {[SQ <LIT_CHARS "Please see http://kythe.io/contributing for more information.">]}          )
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 1]}          )
        )
      )
      (If
        (Pipeline!
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('GO', {[DQ [ComSub (Com {[LIT_CHARS realpath]} {[LIT_CHARS -s]} {[DQ [ComSub (Com {[LIT_CHARS which]} {[LIT_CHARS go]})]]})]]})])
        )
        (List
          (Com {[LIT_CHARS echo]} {[SQ <LIT_CHARS "ERROR: could not locate `go` binary on PATH">]}
            <
            (DescriptorRedirectNode target={[LIT_CHARS 2]} <REDIR_GREATAND ">&"> 1),
            >
          )
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 1]}          )
        )
      )
    )
  )
  (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Using go found at "][VarSub GO]]}
    <
    (DescriptorRedirectNode target={[LIT_CHARS 2]} <REDIR_GREATAND ">&"> 1),
    >
  )
  (Com {[LIT_CHARS ln]} {[VarSub LNOPTS]} {[DQ [VarSub GO]]} {[LIT_CHARS tools/go/go]}  )
  (If
    (DBracket {B1 UNARY_STRING_z {[DQ [VarSub CLANG]]}})
    (List
      (If
        (DBracket {B1 UNARY_STRING_z {[DQ [ComSub (Com {[LIT_CHARS which]} {[LIT_CHARS clang]})]]}})
        (List
          (Com {[LIT_CHARS echo]} {[SQ <LIT_CHARS "You need to have clang installed to build Kythe.">]}          )
          (Com {[LIT_CHARS echo]} {[SQ <LIT_CHARS "Note: Some vendors install clang with a versioned name">]}          )
          (Com {[LIT_CHARS echo]} {[SQ <LIT_CHARS "(like /usr/bin/clang-3.5). You can set the CLANG environment">]}          )
          (Com {[LIT_CHARS echo]} {[SQ <LIT_CHARS "variable to specify the full path to yours.">]}          )
          (Com {[LIT_CHARS echo]} {[SQ <LIT_CHARS "Please see http://kythe.io/contributing for more information.">]}          )
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 1]}          )
        )
      )
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('CLANG', {[DQ [ComSub (Com {[LIT_CHARS realpath]} {[LIT_CHARS -s]} {[ComSub (Com {[LIT_CHARS which]} {[LIT_CHARS clang]})]})]]})])
    )
  )
  (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Using clang found at "][VarSub CLANG]]}
    <
    (DescriptorRedirectNode target={[LIT_CHARS 2]} <REDIR_GREATAND ">&"> 1),
    >
  )
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('BUILTIN_INCLUDES', {[ComSub (Pipeline (Com redirects=[(DescriptorRedirectNode target={[LIT_CHARS 1]} <REDIR_GREATAND "2>&"> 2) (FilenameRedirectNode filename={[LIT_CHARS /dev/null]} <REDIR_LESS "<"> 0)]{[VarSub CLANG]} {[LIT_CHARS -E]} {[LIT_CHARS -x]} {[LIT_CHARS c] [LIT_OTHER "+"] [LIT_OTHER "+"]} {[LIT_CHARS -]} {[LIT_CHARS -v]}) (Com {[LIT_CHARS sed]} {[LIT_CHARS -n]} {[SQ <LIT_CHARS "/search starts here\\:/,/End of search list/p">]}) (Com {[LIT_CHARS sed]} {[SQ <LIT_CHARS "/#include.*/d\n"> <LIT_CHARS "/End of search list./d">]}) (While (Com {[LIT_CHARS read]} {[LIT_CHARS -r]} {[LIT_CHARS INCLUDE_PATH]}) (List (Com {[LIT_CHARS printf]} {[DQ [LIT_CHARS "%s"]]} {[DQ [LIT_CHARS "  cxx_builtin_include_directory: "][\ LIT_ESCAPED_CHAR "\\\""][ComSub (Com {[LIT_CHARS realpath]} {[LIT_CHARS -s]} {[VarSub INCLUDE_PATH]})][\ LIT_ESCAPED_CHAR "\\\""][LIT_CHARS __EOL__]]}) (If (DBracket {B2 BINARY_STRING_NOT_EQUAL {[ComSub (Com {[LIT_CHARS uname]})]} {[SQ <LIT_CHARS Darwin>]}}) (Com {[LIT_CHARS printf]} {[DQ [LIT_CHARS "%s"]]} {[DQ [LIT_CHARS "  cxx_builtin_include_directory: "][\ LIT_ESCAPED_CHAR "\\\""][ComSub (Com {[LIT_CHARS readlink]} {[LIT_CHARS -e]} {[VarSub INCLUDE_PATH]})][\ LIT_ESCAPED_CHAR "\\\""][LIT_CHARS __EOL__]]}) ) ) ) )]})])
  (Com {[LIT_CHARS sed]} {[DQ [LIT_CHARS "s|ADD_CXX_COMPILER|"][VarSub CLANG][LIT_CHARS "|g"]]} {[LIT_CHARS tools/cpp/osx_gcc_wrapper.sh.in]}
    <
    (FilenameRedirectNode filename={[LIT_CHARS tools/cpp/clang]} <REDIR_GREAT ">"> 1),
    >
  )
  (Com {[LIT_CHARS chmod]} {[LIT_OTHER "+"] [LIT_CHARS x]} {[LIT_CHARS tools/cpp/clang]}  )
  (Com {[LIT_CHARS cp]} {[LIT_CHARS tools/cpp/clang]} {[LIT_CHARS tools/cpp/clang] [LIT_OTHER "+"] [LIT_OTHER "+"]}  )
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('ABS_WRAPPER_SCRIPT', {[DQ [ComSub (Com {[LIT_CHARS realpath]} {[LIT_CHARS -s]} {[ComSub (Com {[LIT_CHARS which]} {[LIT_CHARS tools/cpp/clang]})]})]]})])
  (Pipeline
    (Com {[LIT_CHARS sed]} {[DQ [LIT_CHARS "s|ADD_CXX_COMPILER|"][VarSub CLANG][LIT_CHARS "|g\n"][LIT_CHARS "s|ABS_WRAPPER_SCRIPT|"][VarSub ABS_WRAPPER_SCRIPT][LIT_CHARS "|g\n"][LIT_CHARS "s|ADD_CXX_BUILTIN_INCLUDE_DIRECTORIES|"][VarSub BUILTIN_INCLUDES][LIT_CHARS "|g"]]} {[LIT_CHARS tools/cpp/CROSSTOOL.in]}    )
    (Com {[LIT_CHARS sed]} {[SQ <LIT_CHARS "s|__EOL__|\\\n"> <LIT_CHARS "|g">]}
      <
      (FilenameRedirectNode filename={[LIT_CHARS tools/cpp/CROSSTOOL]} <REDIR_GREAT ">"> 1),
      >
    )
  )
)