(command.CommandList children: [ (C {<set>} {<-e>}) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:ldns) op: assign_op.Equal rhs: { (command_sub left_token: <Id.Left_DollarParen '$('> child: (C {<dirname>} { (command_sub left_token: <Id.Left_DollarParen '$('> child: (C {<realpath>} {($ Id.VSub_Number '$0')}) ) } ) ) } spids: [18] ) ] ) (C {<cd>} {($ Id.VSub_DollarName '$ldns')}) (C {<libtoolize>} {<--copy>}) (C {<autoheader>}) (C {<autoconf>}) (C {<'./configure'>} {<--prefix> <Id.Lit_Equals '='>} {<--exec-prefix> <Id.Lit_Equals '='> <'/usr'>}) (C {<cd>} {($ Id.VSub_DollarName '$ldns') <'/drill'>}) (C {<autoheader>}) (C {<autoconf>}) (C {<'./configure'>} {<--prefix> <Id.Lit_Equals '='>} {<--exec-prefix> <Id.Lit_Equals '='> <'/usr'>}) ] )