i asked about this not that long ago but i'm still a bit puzzled --
what's the best practice for adding new layers in terms of how
bblayers.conf and the various layer.conf files are defined?
the default layer.conf for oe-core contains:
BBPATH .= ":${LAYERDIR}"
...
BBFILE_PRIORITY_normal = "5"
so, clearly, the oe-core layer is being *appended* to whatever is in
BBPATH. ok, let's go with that.
on the other hand, that same file for the meta-yocto layer contains:
BBPATH := "${LAYERDIR}:${BBPATH}"
...
BBFILE_PRIORITY_yocto = "5"
so it's being *prepended*. is that deliberate? the end result is
that my BBPATH is:
/home/rpjday/yocto/git/meta-yocto:/home/rpjday/yocto/builds/bbc4:/home/rpjday/yocto/git/meta
which clearly represents:
* the yocto layer
* my build layer
* the oe-core layer
with both the yocto and oe-core layer having priority 5. is there no
chance of confusion here?
in addition, the yocto development manual itself, in section 4.1.2
on layers, stresses the use of:
BBPATH := "${LAYERDIR}:${BBPATH}"
but every single meta-openembedded sub-layer uses the *other* form:
BBPATH .= ":${LAYERDIR}"
anyone reading the manual and trying to match it up to the code is
bound to get confused. thoughts?
rday
--
========================================================================
Robert P. J. Day Ottawa, Ontario, CANADA
http://crashcourse.ca
Twitter: http://twitter.com/rpjday
LinkedIn: http://ca.linkedin.com/in/rpjday
========================================================================
_______________________________________________
Openembedded-core mailing list
Openembedded-core@lists.openembedded.org
http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
