[yocto] how to install files in nativesdk

[Steve Scott]

Thanks Ross. That helped me pull it all together.

-steve

> -----Original Message-----
> From: Burton, Ross [mailto:ross.burton at intel.com]
> Sent: Monday, October 08, 2018 4:11 AM
> To: sscott at san.rr.com
> Cc: Yocto-mailing-list <yocto at yoctoproject.org>
> Subject: Re: [yocto] how to install files in nativesdk
> 
> On Sat, 6 Oct 2018 at 06:18, Steve Scott <sscott at san.rr.com> wrote:
> > I am able to generate a standard SDK with native and target sysroots.
> > The target sysroot has header files for my custom libraries. The
> > header files are generally installed in
> > <path-to-sdk-target-sysroot>/usr/include/
> >
> > We use cmake and googletest running on the *host* for testing some of
> > our libraries. So I need to build googletest and the test apps using
> > the host (x86_64) tools. The test apps need to include the target's
> > library header files.
> >
> > I tried specifying the SDK's *target* usr/include as an include
> > directory to the compiler, but files in this tree preempted the
> > standard compiler (g++) system include files. I can avoid this problem
> > by installing the library header files under the SDK's native sysroot;
> > i.e. in <path-to-sdk-native-sysroot>/usr/include/
> > and setting this directory as an include directory on the compiler
> > command line.
> >
> > However, I cannot grok how to get these files into the SDK's native
> > tree. It seems related to
> >    BBCLASSEXTEND = "native nativesdk"
> > but I'm just chasing my tail trying to figure out the magic incantation.
> >
> > Does anyone know how to do this? Or is there a better approach?
> 
> Assuming the recipe is correctly written, simply adding:
> 
> BBCLASSEXTEND = "native nativesdk"
> 
> Will give your recipe (eg foo.bb) native and nativesdk variant (foo-native and
> nativesdk-foo).  The class extension automatically changes the paths so in
> general that's all you need to do.  Then just add nativesdk-foo to your SDK
> using TOOLCHAIN_HOST_TASK_append = "
> nativesdk-foo".
> 
> Ross