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Panotools::Makefile::Rule.3pm

NAME

Panotools::Makefile::Rule - Assemble Makefile rules

SYNOPSIS

Simple interface for generating Makefile syntax

DESCRIPTION

Writing Makefiles directly from perl scripts with print and ``\t'' etc... is prone to error, this library provides a simple perl interface for assembling Makefile rules.

USAGE

   my $rule = new Panotools::Makefile::Rule;
 
 

..or additionally specify targets at creation time

   my $rule = new Panotools::Makefile::Rule ('all');
 
 

A Makefile rule always has one or more 'targets', these are typically filenames, but can be 'phony' non-files.

(phony targets should be listed as perequisites of the special .PHONY target)

   $rule->Targets ('output1.txt', 'output2.txt');
 
 

..or equivalently:

   $rule->Targets ('output1.txt');
   $rule->Targets ('output2.txt');
 
 

Rules can have zero or more 'prerequisites', again these are typically filenames, but can be 'phony' non-files.

   $rule->Prerequisites ('input1.txt', 'input2.txt');
 
 

..or equivalently:

   $rule->Prerequisites ('input1.txt');
   $rule->Prerequisites ('input2.txt');
 
 

Rules zero or more 'commands':

   $rule->Command ('cp', 'input1.txt', 'output1.txt');
   $rule->Command ('cp', 'input2.txt', 'output2.txt');
 
 

Assemble all this into string that can be written to a Makefile:

   my $string = $rule->Assemble;