m4: Preliminaries

 
 1 Introduction and preliminaries
 ********************************
 
 This first chapter explains what GNU 'm4' is, where 'm4' comes from, how
 to read and use this documentation, how to call the 'm4' program, and
 how to report bugs about it.  It concludes by giving tips for reading
 the remainder of the manual.
 
    The following chapters then detail all the features of the 'm4'
 language.
 

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