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Date: Fri, 16 Nov 2007 07:59:09 -0600
From: David Farning <dfarning@gmail.com>
To: OpenEmbedded Development List <openembedded-devel@lists.openembedded.org>
Message-ID: <20071116135909.GA19085@lenovo>
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Subject: Cross compiler questions
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I am trying to get my mind wrapped around how OE handles
cross-compiling.  The first question is where is the cross compiler
tool chain getting pulled into the build queue?

I am greping for gcc-native and quilt to figure out how they are
included or required?  I see a PREFERED_VERSION set in the distro.  Is
PREFERED_VERSION a method of including dependancies?

Also, the tmp/cross directory has three distinct file groupings.

dfarning@lenovo:~/oe/oetmp$ find cross -maxdepth 3 -type d
cross
cross/i586-angstrom-linux
cross/i586-angstrom-linux/bin
cross/lib
cross/lib/gcc
cross/lib/gcc/i586-angstrom-linux
cross/i686-linux
cross/i686-linux/i586-angstrom-linux
cross/i686-linux/i586-angstrom-linux/lib
cross/i686-linux/i586-angstrom-linux/include
cross/bin
cross/libexec
cross/libexec/gcc
cross/libexec/gcc/i586-angstrom-linux
cross/include
cross/share

What is the difference between 
cross
cross/i586-angstrom-linux
cross/i686-linux/i586-angstrom-linux

Why are thing different things being placed in different dirs?


Thanks
David Farning