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7.9.1 local-only use

To use AutoOpts in your application where you do not have to worry about distribution issues, your issues are simple and few.

• Create a file ‘myopts.def’, according to the documentation above. It is probably easiest to start with the example in Quick Start and edit it into the form you need.
• Run AutoGen to create the option interface file (myopts.h) and the option descriptor code (myopts.c):

  autogen myopts.def
  

• In all your source files where you need to refer to option state, #include "myopts.h".
• In your main routine, code something along the lines of:

  #define ARGC_MIN some-lower-limit
  #define ARGC_MAX some-upper-limit
  main( int argc, char** argv )
  {
      {
          int arg_ct = optionProcess( &myprogOptions, argc, argv );
          argc -= arg_ct;
          if ((argc < ARGC_MIN) || (argc > ARGC_MAX)) {
              fprintf( stderr, "%s ERROR:  remaining args (%d) "
                       "out of range\n", myprogOptions.pzProgName,
                       argc );
  
              USAGE( EXIT_FAILURE );
          }
          argv += arg_ct;
      }
      if (HAVE_OPT(OPTN_NAME))
          respond_to_optn_name();
      ...
  }
  

• Compile ‘myopts.c’ and link your program with the following additional arguments:

  `autoopts-config cflags ldflags` myopts.c