7.5.4 Generating main procedures

When AutoOpts generates the code to parse the command line options, it has the ability to produce any of several types of main() procedures. This is done by specifying a global structured value for main. The values that it contains are dependent on the value set for the one value it must have: main-type.

The recognized values for main-type are guile, shell-process, shell-parser, main, include, invoke, and for-each.

The for-each main  procedure has a number of attributes that
must be specified:

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