This file describes the format of configuration files
for the Fortran single/double precision converter.

Normally, each file with a .name suffix has lines of the form

	sp_module_name : dp_module_name

where sp_module_name and dp_module_name are the names of
otherwise equivalent single- and double-precision functions
and subroutines.

An alternate format:

	sp1 sp2 ... : dp1 dp2 ...

will cause the s2d converter to convert each of the names,
sp1, sp2, ...  to dp1.  Similarly, d2s will convert each of
the names dp1, dp2, ... to sp1.

For example, the following is a line from the f77 configuration file:
    csqrt : zsqrt cdsqrt
It causes the double-to-single converter (d2s) to map two names for
the double precision complex sqare root function (zsqrt and cdsqrt)
to csqrt.  S2d maps csqrt to zsqrt.

Comments in configuration files are like those of sh(1); they begin
with the `#' character, and terminate at end of line.
