Re: [dpdk-dev] [PATCH 03/10] mk: install a standard cutomizable tree

[Thomas Monjalon <thomas.monjalon@6wind.com>]

2015-12-02 14:54, Panu Matilainen:
> On 12/02/2015 01:25 PM, Thomas Monjalon wrote:
> > 2015-12-02 12:27, Panu Matilainen:
> >> $(prefix)/share is supposed to be shareable across different
> >> architectures. Most of the content here is, but at least the lib symlink
> >> and .config file are not.
> >
> > The case you want to address is multilib 32/x32/64, right?
> 
> That, plus modern Debian/Ubuntu supports multiarch, not just -lib.

We do not support completely different platforms (e.g. ARM and x86)
with only one include directory. At the moment, only variants (32/64)
live together.

> >> One option is to install .config and the symlinks within $(sdkdir)/$(T)
> >> directories, then it can be shared across architectures because each
> >> lives in their own directory. Another possibility is moving the whole
> >> sdk directory into a subdir in $(libdir), but that misses the
> >> opportunity to share across architectures (whether anybody actually
> >> cares is a whole other question :)
> >
> > Yes, I tried to remove the use of RTE_TARGET when building an example.
> > But we can keep it with a subdirectory in $(sdkdir).
> 
> Just realized my suggestion $(sdkdir)/$(T) would not cut it because if 
> T= is specified then this installation method wont be invoked at all :D

I don't understand what you mean.
In my patchset, the installation is the same (except some default values)
with and without T=.

> So yeah, RTE_TARGET. Or perhaps just RTE_ARCH. Dunno if there's actual 
> added value to having the whole target string there, but I wont mind either.

RTE_TARGET is a safe choice for future.