A couple of questions about the new build system

[Jonathan Gibbons]

On 03/28/2013 02:29 PM, Phil Race wrote:
> 1. Why do we have both --with-cups and --with-cups-include ?
> All we use is the header files so the latter is what matters and
> I'm not sure which one the build system prefers if both are set.
>
> 2. In the old build I could do
>    cd make/sun/font
>    make clean
>    make all
>
> Is there anything analagous to 'make clean' here,where I can have a 
> level of comfort
> that all generated files related to building just a particular area 
> are removed.
> This was useful after I touched a header file.
> Now when I touch a header file, the new build system doesn't notice,
> so I have to manually purge, but  nor does it (as far as I can see) 
> give me
> a target to purge that component. To do this I need to go hunt down
> the directory with the object files and remove them.
> Is there something better I can do ?
>
> -phil.
>

If you touch a header fie, the build is supposed to notice and "do the 
right thing".

-- Jon