(I'm not Peter, but I think I know anyway...)

Using the makefile (and a "make" tool), you say that,

"to build objectfile xyz.o, asm file xyz.asm is to assambled
 using *this* command".

So, make checks the date of the o file, if that is *later*
then the date of the asm file, nothing happens. The asm
file has *not* been changed after the o file was created.

But if the data of the o file is *earlier* then the asm
file, the o file is rebuilt (using the command in the
makefile).

So, whenever you re-build your project, you only
rebuilds those modules that has been chanaged since
the last re-build.

Or, in short, MAKE saves time. If you have a large
project with many small source files, the saved time
can be rellatively large if only one source file
is changed between each build.

Jan-Erik.


Andre Abelian wrote:
> Peter,
>
> What does make file do? What other things can
> You do with it?

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