[OE-core] what exactly is the proper way to use FILESEXTRAPATHS?

[Robert P. J. Day]

On Thu, 6 Dec 2012, Richard Purdie wrote:

> On Thu, 2012-12-06 at 15:27 -0500, Robert P. J. Day wrote:
> > continuing my trek through coding pedantry and was wondering about
> > the exact purpose of the common line in .bbappend files:
> >
> > FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
> >
> > or some slight variation thereof.
> >
> >   i *thought* i knew what it did, so i did a small experiment with the
> > meta-ti layer and netbase (since i was already messing around with
> > it), and i replaced the contents of the netbase .bbappend file with
> > the single line:
> >
> > FILESEXTRAPATHS_prepend := "rday"
> >
> > and checked the environment for the value of FILESPATH for the netbase
> > recipe and, after formatting to read it clearly, what i saw was:
> >
> > FILESPATH="rday/linux-gnueabi
> > rday/arm
> > rday/build-linux
> > rday/pn-netbase
> > rday/beagleboard
> > rday/omap3
> > rday/armv7a
> > rday/
> > rday/class-target
> > rday/forcevariable
> > rday/libc-glibc
> > rday/
> > /home/rpjday/OE/dist/layers/oe-core/meta/recipes-core/netbase/netbase-5.0/linux-gnueabi
> > /home/rpjday/OE/dist/layers/oe-core/meta/recipes-core/netbase/netbase-5.0/arm
> > /home/rpjday/OE/dist/layers/oe-core/meta/recipes-core/netbase/netbase-5.0/build-linux
> > /home/rpjday/OE/dist/layers/oe-core/meta/recipes-core/netbase/netbase-5.0/pn-netbase
> > /home/rpjday/OE/dist/layers/oe-core/meta/recipes-core/netbase/netbase-5.0/beagleboard
> > /home/rpjday/OE/dist/layers/oe-core/meta/recipes-core/netbase/netbase-5.0/omap3
> > ... snip ...
> >
> >   what the heck?  if that's what FILESEXTRAPATHS is supposed to do,
> > that is definitely *not* how it's being used in many, many bbappend
> > files.
> >
> >   is there an explanation somewhere as to what the above is supposed
> > to represent?
>
> What is puzzling about the above? Its doing what it was designed to do.
>
> The idea is to add the directory listed to the set of directories that
> get "autogenerated" from OVERRIDES as search locations. What did you
> expect it to do?

  i am, right this minute, looking at the explanation of
FILESEXTRAPATHS in the poky reference manual glossary.  i see
absolutely no mention of the word "OVERRIDES".

  signing off for the evening as i'm starting to get annoyed ...

rday

-- 

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Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
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