[yocto] Build only one specific C source from git clone with many C files

[Paul Eggleton]

On Monday, 6 February 2017 11:45:19 AM NZDT Burton, Ross wrote:
> On 6 February 2017 at 11:27, Prasant J <pj0585 at gmail.com> wrote:
> > Is it possible to modify SRC_URI to take only one source file from a
> > git clone and build it?
> 
> No, you can't do that with git.
> 
> One way would be to use the http fetcher to get the file directly from the
> web interface to the kernel.

Well, technically if it's just a directory you want you can use subpath= - 
that doesn't actually prevent fetching the entire repo though, it just changes 
what gets unpacked to the work directory for the recipe.

(Beware - earlier versions of the build system had a nasty bug with subpath=, 
if you're using 1.7.1, 1.8.0 or older I'd suggest not including a leading or 
trailing slash in the subpath value - you don't need them anyway).

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre