5.6 definitions option

This is the "definitions input file" option.

This option has some usage constraints. It:

• is enabled by default.
• may not be preset with environment variables or in initialization (rc) files.

Use this argument to specify the input definitions file with a command line option. If you do not specify this option, then there must be a command line argument that specifies the file, even if only to specify stdin with a hyphen (-). Specify, --no-definitions when you wish to process a template without any active AutoGen definitions.