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To simplify a `Makefile' , there is a special kind of rule syntax known as a suffix rule . This is a wildcard pattern that can match targets. Our first `Makefile' used some. Here is one:
Unless a more specific rule matches the target being sought, this rule will match any target that ends in `.o' . These files are said to always be dependent on `.c' . With some background material now presented, let's take a look at these tools in use.