[yocto] Writing do_install_append for target and virtclass-native in a bbappend

[Richard Purdie]

On Tue, 2012-04-17 at 10:32 +0100, Paul Eggleton wrote:
> On Monday 16 April 2012 20:32:25 Darren Hart wrote:
> > I'm trying to address a symlink naming issue in the bzip2 package when
> > used with Chrome. Chrome is looking for a specific soname, which the
> > default install of bzip2 doesn't setup. I can address this easily by
> > adding the symlink via a bzip2 bbappend in do_install_append().
> > Unfortunately, this fails for the virtclass-native variant. I tried
> > adding and empty:
> > 
> > do_install_append_virtclass-native() {
> > 
> > }
> > 
> > function to the bbappend, which still failed. I then added an echo
> > statement which appeared in the output, but it still ran non-native
> > do_install_append() and failed. Switching the order of the functions
> > made the echo output disappear, but the native variant still failed.
> > 
> > I figure I must be missing something rather fundamental here. Any ideas
> > what it might be?
> 
> Unfortunately the virtclass overrides can't help you when you want to just 
> append something in the target case; however, what we usually do is just do an 
> normal append and then check within it if [ "${PN}" = "${BPN}" ] which will be 
> false for -native, -nativesdk etc.

We're going to need to get out of this habit since it breaks for
multilibs :(

Cheers,

Richard