Aha, I get it, you make a script that checks the date of modification of a file. If the modification time of the .pl (perl script) is greater than the corresponding .exe (executable file), you generate a new executable.
Never looked at the problem from this angle. But this wont help you 100% on the dependencies, like when I require a .pl, which store the genetal subroutines. So now I get the use and power of a make file
So final stage is finding a good example of a makefile using PAR:Packer, so pp instead of cc so I can parse my code into)