Re: make repeated goals repeatedly?

[David Boyce]

At 05:45 PM 4/20/2006, Brendan Heading wrote:
> David Boyce wrote:
> > I'm looking for clarification on what _should_ happen when you 
> > specify the same target(s) repeatedly on the command line. 
> > Background: while working on speeding up a particular build I've 
> > gotten in the habit of running something like:
> >     % time make -s clean all
>
> Seems like a bad idea anyway, as you'll break parallel builds 
> (unless "all" depends on "clean" .. which would make mentioning 
> "clean" on the cmd line redundant anyways ..
>
> (all makefiles these days really should be written to assume they'll 
> be run with -j.. )

Look back at what I wrote - this has nothing to do with how the 
makefile is written, it has only to do with what I type at the 
command line. And I'm not typing "-j".

There's no reason anyone would ever use "make clean all clean all" in 
a production build. I'm only doing so as part of a tuning process, as noted.

-David Boyce