Re: What's the purpose of "BDIR" in oe-buildenv-internal?


Robert P. J. Day
 

On Thu, 27 Oct 2011, Scott Garman wrote:

On 10/27/2011 01:27 PM, Robert P. J. Day wrote:
prepping to give a yocto talk to my local (ottawa) LUG next week,
and was reviewing the logic of the setup starting with
oe-init-build-env, and noticed in scripts/oe-buildenv-internal a
test of the variable BDIR for the name of the build directory. but
there's no mention of that variable in the calling
oe-init-build-env, and i see no mention of it in the intro-level
docs.

clearly, one could use that shell env variable if one wanted to
name the build directory to be used, but given that there's
absolutely no explanation of it anywhere for a new user, what
exactly is its purpose?
This allows you to specify a build directory that lives elsewhere on
your filesystem, rather than in poky/build. This is handy in case
you want to keep the build system source tree pristine.

Simply source the build init script with the desired build directory
as an argument. I'm quite sure we have this documented, although
BDIR isn't explicitly mentioned.
that's the point i was raising -- that variable's value is obvious,
it's just not described anywhere i noticed.

rday

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

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