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Previous: 19.4 m4 Macros by FunctionChapter 19
V8 m4 Configuration
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19.5 Pitfalls

The use of the # to place comments into an mc file for eventual transfer to your configuration file may not work as expected. The # is not special to m4, so m4 continues to process a line even though that line is a comment. So instead of

# Here we define $m as our domain

(which would see define as an m4 keyword), use single quotes to insulate all such comments from m4 interpretation:

# `Here we define $m as our domain'

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19.4 m4 Macros by FunctionBook Index19.6 Alphabetized m4 Macros