[OE-core] What is TOOLCHAIN_NEED_CONFIGSITE_CACHE for?
Phil Blundell
philb at gnu.org
Mon Oct 29 13:33:46 UTC 2012
This morning I happened to notice that some/all of my images had a
dependency on ncurses for no obviously good reason. (Following an
earlier small crusade these are now the only remaining dependencies on
ncurses in my build, so I would quite like to get rid of them.)
It turns out that the dependency in question is due to the code in
toolchain-scripts.bbclass (which is inherited from
populate_sdk_base.bbclass, from image.bbclass) which does:
TOOLCHAIN_NEED_CONFIGSITE_CACHE = "${TCLIBC} ncurses"
[...]
python __anonymous () {
deps = ""
for dep in (d.getVar('TOOLCHAIN_NEED_CONFIGSITE_CACHE', True) or "").split():
deps += " %s:do_populate_sysroot" % dep
d.appendVarFlag('do_configure', 'depends', deps)
}
The code in question was added in:
commit 9e87f1347788beed181476dc4563085db14a4729
Author: Lianhao Lu <lianhao.lu at intel.com>
Date: Tue Aug 16 11:15:36 2011 +0800
toolchain-script.bbclass: Collected cached site config in runtime.
[YOCTO #892]
Modify the function toolchain_create_sdk_siteconfig to collect the
cached site config files which are specified by
TOOLCHAIN_NEED_CONFIGSITE_CACHE in runtime.
Also added task dependency to ensure the cached site config files are
generated.
Signed-off-by: Lianhao Lu <lianhao.lu at intel.com>
... but I don't entirely understand from that commentary what exactly is
special about ncurses that means it needs to be handled this way. Can
anybody clarify?
thanks
p.
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