Re: How to change certain rules such that they will not executed as long as the target is available?

[Harvey Chapman]

On Jun 11, 2010, at 2:54 PM, couling wrote:

> 
> I Think what you're looking for is 
> http://www.gnu.org/software/make/manual/make.html#index-order_002donly-prerequisites-155
> order-only-prerequisites .  These act just like normal prerequisites except
> that they will ignore the date.
> 
> To use them just put a pipe (|) after the normal prerequisites (there don't
> have to be any) and everything that follows will be treated as an
> order-only-prerequisite.
> 
> item : prereq | order-only-prereq
>       command

Wow, that description is worlds better than the manual.