[dpdk-dev] [RFC PATCH] build: allow passing extra config header to build

[Bruce Richardson]

On Fri, Nov 13, 2020 at 04:55:57AM +0000, Honnappa Nagarahalli wrote:
> <snip>
> 
> > 
> > To allow per-build override of some settings, without having to change
> > DPDK source-code files, i.e. rte_config.h, we can add an option to
> > allow the user to pass in a file containing their own defines for the
> > build.
> I guess, the file format should be same as any header file.  One could
> derive a file from rte_config.h. I think this will provide good
> flexibility.  If this is provided, we could deprecate options such as
> max_lcores, max_numa_nodes. But it would mean, one needs to know the
> exact #defines.
>
Yep, fully agree and I definitely think we should look to remove some
options like those.

 However, this is just one possibility of the way we can do things, so I'd
like to see other prototype suggestions also proposed here on-list (or
suggested approaches just outlined in email such as proposed by David
Harton).  I also will add this to the techboard agenda for future
discussion, so that we can do some brain-storming as to how best to improve
this area, and discuss any prototypes covered on-list.

/Bruce