On 1 February 2017 at 12:48, Patrick Ohly <patrick.o...@intel.com> wrote:
> On Wed, 2017-02-01 at 10:38 +0000, colin.helliw...@ln-systems.com wrote:
> > I’ve got an odd problem with a pair of recipes:
> >
> > App ‘bar’ uses ‘libfoo’, so I’ve set a DEPENDS in bar.bb – I can see
> > this is being half picked up, because ‘bitbake bar’ shows both builds
> > being started. However bar isn’t waiting on libfoo – bar tries to
> > compile before libfoo has even finished configuring, let alone
> > compiled and installed it’s header (foo_lib.h) into sysroot.
> >
> > I think the recipes are probably otherwise correct - if I ‘bitbake
> > libfoo’ then ‘bitbake bar’ then all works.
> >
> > I’ve looked at some simple lib recipes within poky (e.g.
> > libwebp_0.4.3.bb / webkitgtk_2.8.5.bb), and can’t spot anything
> > wrong/missing. Not sure if libfoo should have any ‘install’ or similar
> > sections, or any FILES_ settings, but I was [naively…?] hoping that
> > the inherited classes will be sorting out all that generic kinda
> > stuff.
>
> [...]
>
> > DEPENDS_${PN} = "libfoo"
> ^^^^^^^^^^^^^
> This needs to be just "DEPENDS". DEPENDS sets the dependencies for the
> compilation of the entire recipe, whereas...
>
> > RDEPENDS_${PN} = "libfoo"
>
> ... RDEPENDS is for runtime dependencies specific packages and thus has
> _<package name> as suffix ($PN = bar in this case).
>
>
You also don't need the RDEPENDS_${PN} line in your recipe at all in normal
cases: if your app links with libfoo, the runtime dependency will be
automatically added.
Jussi
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