make: Running

1 
1 9 How to Run 'make'
1 *******************
1 
1 A makefile that says how to recompile a program can be used in more than
1 one way.  The simplest use is to recompile every file that is out of
1 date.  Usually, makefiles are written so that if you run 'make' with no
1 arguments, it does just that.
1 
1    But you might want to update only some of the files; you might want
1 to use a different compiler or different compiler options; you might
1 want just to find out which files are out of date without changing them.
1 
1    By giving arguments when you run 'make', you can do any of these
1 things and many others.
1 
1    The exit status of 'make' is always one of three values:
1 '0'
1      The exit status is zero if 'make' is successful.
1 '2'
1      The exit status is two if 'make' encounters any errors.  It will
1      print messages describing the particular errors.
1 '1'
1      The exit status is one if you use the '-q' flag and 'make'
11      determines that some target is not already up to date.  ⇒
      Instead of Executing Recipes Instead of Execution.
1 

Menu

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· Makefile Arguments          How to specify which makefile to use.
· Goals                       How to use goal arguments to specify which
1                                   parts of the makefile to use.
· Instead of Execution        How to use mode flags to specify what
1                                   kind of thing to do with the recipes
1                                   in the makefile other than simply
1                                   execute them.
· Avoiding Compilation        How to avoid recompiling certain files.
· Overriding                  How to override a variable to specify
1                                   an alternate compiler and other things.
· Testing                     How to proceed past some errors, to
1                                   test compilation.
· Options Summary             Summary of Options
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