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bitbake.conf: use ??= for IMAGE_ROOTFS_SIZE 

Previously, when building core-image-minimal, the rootfs size would
default to 64M because we use '?=' in bitbake.conf and also '?=' in
core-image-minimal.bb.

The thing is, we'd like to have a default value for all images set
in bitbake.conf but still allow each image recipe to set its own default
value which could be overridden by users in local.conf.

(From OE-Core rev: 18f499df6bcbf79d7bd0a99c4c8693268683485f)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Chen Qi 2014-09-04 15:52:44 +08:00 committed by Richard Purdie
parent 3a7769329e
commit 5e18549574
1 changed files with 1 additions and 1 deletions
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meta/conf/bitbake.conf
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@ -689,7 +689,7 @@ MACHINE_TASK_PROVIDER ?= "${DEFAULT_TASK_PROVIDER}"
# The size in Kbytes for the generated image if it is larger than
# the required size (du -ks IMAGE_ROOTFS * IMAGE_OVERHEAD_FACTOR),
# and no effect if less than it.
IMAGE_ROOTFS_SIZE ?= "65536"
IMAGE_ROOTFS_SIZE ??= "65536"
# Forcefully set CACHE now so future changes to things like
# MACHINE don't change the path to the cache