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(g77-300.info)Machine Model

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Machine Model
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   This items pertain to generalizing `g77''s view of the machine model
to more fully accept whatever the GBE provides it via its configuration.

   * Switch to using `REAL_VALUE_TYPE' to represent floating-point
     constants exclusively so the target float format need not be
     required.  This means changing the way `g77' handles
     initialization of aggregate areas having more than one type, such
     as `REAL' and `INTEGER', because currently it initializes them as
     if they were arrays of `char' and uses the bit patterns of the
     constants of the various types in them to determine what to stuff
     in elements of the arrays.

   * Rely more and more on back-end info and capabilities, especially
     in the area of constants (where having the `g77' front-end's IL
     just store the appropriate tree nodes containing constants might
     be best).

   * Suite of C and Fortran programs that a user/administrator can run
     on a machine to help determine the configuration for `g77' before
     building and help determine if the compiler works (especially with
     whatever libraries are installed) after building.