! *** 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
    
    
    ! 
    !  GSD entry - Symbol definition
    ! 
    !  common to definitions, references, and entry
    !  point definitions.
    ! 
      DECLARE LONG CONSTANT GSY$M_WEAK = x'00000001'
      DECLARE LONG CONSTANT GSY$M_DEF = x'00000002'
      DECLARE LONG CONSTANT GSY$M_UNI = x'00000004'
      DECLARE LONG CONSTANT GSY$M_REL = x'00000008'
      DECLARE LONG CONSTANT GSY$M_COMM = x'00000010'
      DECLARE LONG CONSTANT GSY$S_GSYDEF = 4
      record GSYDEF
         group GSY$R_GSDTYP_OVERLAY
            variant
               case
                  BYTE GSY$B_GSDTYP         ! Type field 
               case
                  group GSY$R_GSDTYP_FIELDS
                     STRING GSY$T_START = 0
                     BYTE GSYDEF$$_FILL_1
                  end group GSY$R_GSDTYP_FIELDS
            end variant
         end group GSY$R_GSDTYP_OVERLAY
         BYTE GSY$B_DATYP                   ! Symbol data type 
         group GSY$R_FLAGS_OVERLAY
            variant
               case
                  WORD GSY$W_FLAGS          ! Symbol flags 
               case
                  group GSY$R_FLAGS_BITS
                      ! Weak symbol 
                      ! Definition 
                      ! Universal 
                      ! Relocatable 
                      ! C common globaldef
                     BYTE WEAK_bits   ! COMMENT ADDED BY SDL - WEAK_bits contains bits WEAK through FILL_17_
                  end group GSY$R_FLAGS_BITS
            end variant
         end group GSY$R_FLAGS_OVERLAY
      end record GSYDEF