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Chris Larson 57044b9a62 Implement ??= operator

??= is a lazy, conditional assignment.  Whereas a ?= immediately assigns to
the variable if the variable has not yet been set, ??= does not apply the
default assignment until the end of the parse.  As a result, the final ??= for
a given variable is used, as opposed to the first as in ?=.

Note that the initial implementation relies upon finalise() to apply the
defaults, so a "bitbake -e" without specifying a recipe will not show the
defaults as set by ??=.  Moving application of the default into getVar adds
too large a performance hit.  We may want to revisit this later.

(Bitbake rev: 74f50fbca194c9c72bd2a540f4b9de458cb08e2d)

Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

2010-03-22 15:02:59 +00:00

bitbake

Implement ??= operator

2010-03-22 15:02:59 +00:00

build/conf

conf: remove references to SRC_TARBALL_STASH

2010-02-04 00:18:29 +00:00

handbook

handbook: remove OpenedHand contact information

2010-03-19 10:23:23 +00:00

README

Poky

Poky platform builder is a combined cross build system and development environment. It features support for building X11/Matchbox/GTK based filesystem images for various embedded devices and boards. It also supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK with IDE integration.

Poky has an extensive handbook, the source of which is contained in the handbook directory. For compiled HTML or pdf versions of this, see the Poky website http://pokylinux.org.

Additional information on the specifics of hardware that Poky supports is available in README.hardware.