! *** PREDECLARED TYPES
     
      %IF %DECLARED ( %BASIC$QUADWORD_DECLARED ) = 0 %THEN
         RECORD BASIC$QUADWORD
            LONG FILL ( 2 )
         END RECORD
         %LET %BASIC$QUADWORD_DECLARED = 1
      %END %IF
     
      %IF %DECLARED ( %BASIC$OCTAWORD_DECLARED ) = 0 %THEN
         RECORD BASIC$OCTAWORD
            LONG FILL ( 4 )
         END RECORD
         %LET %BASIC$OCTAWORD_DECLARED = 1
      %END %IF
     
      %IF %DECLARED ( %BASIC$HFLOAT_AXP_DECLARED ) = 0 %THEN
         RECORD BASIC$HFLOAT_AXP
            LONG FILL ( 4 )
         END RECORD
         %LET %BASIC$HFLOAT_AXP_DECLARED = 1
      %END %IF
     
      %IF %DECLARED ( %BASIC$F_FLOATING_COMPLEX_DECL ) = 0 %THEN
         RECORD BASIC$F_FLOATING_COMPLEX
            SINGLE REAL_PART
            SINGLE IMAGINARY_PART
         END RECORD
         %LET %BASIC$F_FLOATING_COMPLEX_DECL = 1
      %END %IF
     
      %IF %DECLARED ( %BASIC$D_FLOATING_COMPLEX_DECL ) = 0 %THEN
         RECORD BASIC$D_FLOATING_COMPLEX
            DOUBLE REAL_PART
            DOUBLE IMAGINARY_PART
         END RECORD
         %LET %BASIC$D_FLOATING_COMPLEX_DECL = 1
      %END %IF
     
      %IF %DECLARED ( %BASIC$G_FLOATING_COMPLEX_DECL ) = 0 %THEN
         RECORD BASIC$G_FLOATING_COMPLEX
            GFLOAT REAL_PART
            GFLOAT IMAGINARY_PART
         END RECORD
         %LET %BASIC$G_FLOATING_COMPLEX_DECL = 1
      %END %IF
     
      %IF %DECLARED ( %BASIC$H_FLOAT_AXP_CMPLX_DCL ) = 0 %THEN
         RECORD BASIC$H_FLOATING_COMPLEX_AXP
            BASIC$HFLOAT_AXP REAL_PART
            BASIC$HFLOAT_AXP IMAGINARY_PART
         END RECORD
         %LET %BASIC$H_FLOAT_AXP_CMPLX_DCL = 1
      %END %IF
    
    
    ! 
    !  Linker Options Record (LNK)
    ! 
      DECLARE LONG CONSTANT LNK$C_OLB = 0   !  object library spec 
      DECLARE LONG CONSTANT LNK$C_SHR = 1   !  shareable image library spec 
      DECLARE LONG CONSTANT LNK$C_OLI = 2   !  object library with inclusion list  
      DECLARE LONG CONSTANT LNK$C_OBJ = 3   !  object file or symbol table file
      DECLARE LONG CONSTANT LNK$C_SHA = 4   !  individually specified shr img
      DECLARE LONG CONSTANT LNK$C_MAXRECTYP = 4  !  highest current record type 
      DECLARE LONG CONSTANT LNK$M_SELSER = x'00000001'
      DECLARE LONG CONSTANT LNK$M_LIBSRCH = x'00000002'
      DECLARE LONG CONSTANT LNK$S_LNKDEF = 6
      record LNKDEF
         BYTE LNK$B_RECTYP                  !  record type LNK 
         BYTE LNK$B_LNKTYP                  !  sub record type 
         group LNK$R_FLAGS_OVERLAY
            variant
               case
                  WORD LNK$W_FLAGS
               case
                  group LNK$R_FLAGS_BITS
                      !  selectively searched (LNK$C_OBJ)
                     BYTE SELSER_bits   ! COMMENT ADDED BY SDL - SELSER_bits contains bits SELSER through FILL_14_
                  end group LNK$R_FLAGS_BITS
            end variant
         end group LNK$R_FLAGS_OVERLAY
         group LNK$R_NAMLNG_OVERLAY
            variant
               case
                  WORD LNK$W_NAMLNG         !  length of filespec name 
               case
                  group LNK$R_NAMLNG_FIELDS
                     BYTE LNKDEF$$_FILL_1 ( 1 to 2 )
                     STRING LNK$T_NAME = 0  !  actual name 
                  end group LNK$R_NAMLNG_FIELDS
            end variant
         end group LNK$R_NAMLNG_OVERLAY
      end record LNKDEF