This items pertain to generalizing g77's view of
the machine model to more fully accept whatever the GBE
provides it via its configuration.
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.
g77 front-end's IL just store
the appropriate tree nodes containing constants might be best).
g77 before building
and help determine if the compiler works (especially with whatever
libraries are installed) after building.