Info Catalog make: Chained Rules make: Implicit Rules make: Last Resort

make: Pattern Rules

 
 10.5 Defining and Redefining Pattern Rules
 ==========================================
 
 You define an implicit rule by writing a "pattern rule".  A pattern rule
 looks like an ordinary rule, except that its target contains the
 character '%' (exactly one of them).  The target is considered a pattern
 for matching file names; the '%' can match any nonempty substring, while
 other characters match only themselves.  The prerequisites likewise use
 '%' to show how their names relate to the target name.
 
    Thus, a pattern rule '%.o : %.c' says how to make any file 'STEM.o'
 from another file 'STEM.c'.
 
    Note that expansion using '%' in pattern rules occurs *after* any
 variable or function expansions, which take place when the makefile is
DONTPRINTYET  read.  How to Use Variables Using Variables, and *noteFunctions
DONTPRINTYET  read.  How to Use Variables Using Variables, and Functions

 for Transforming Text Functions.
 

Menu

 
· Pattern Intro               An introduction to pattern rules.
· Pattern Examples            Examples of pattern rules.
· Automatic Variables         How to use automatic variables in the
                                   recipe of implicit rules.
· Pattern Match               How patterns match.
· Match-Anything Rules        Precautions you should take prior to
                                   defining rules that can match any
                                   target file whatever.
· Canceling Rules             How to override or cancel built-in rules.
 

Info Catalog make: Chained Rules make: Implicit Rules make: Last Resort