Maintaing library modules with Make 4.2BSD

[jal at oliveb.UUCP]

I am currently building a library for a port we are doing.

I would like to use make to automatically check the time of a module within
a library, and if it is older than the corresponding source, to recompile
the source and replace the module in the library.

I tried something like:

	library(module) : module.c
		.
		.

but it reompiled everytime.

I eventually ended up using dummy files which were touched every time the 
corresponding module was recompiled but it is messy.

Any thoughts?

Thanks in advance,
			Jayen.