Improve handling of 'all' architecture recipes and their interaction with sstate

The existing PACKAGE_ARCH = "all" mechanism of sharing packages is problematic
with sstate since there are a variety of variables which have target specific
values and the sstate package therefore correctly changes signature depending
on the MACHINE setting.

This patch creates a new "allarch" class which sets:

PACKAGE_ARCH = "all"

(as per the existing convention)

INHIBIT_DEFAULT_DEPS = "1"

(since its not target specific and therefore can't depend on the cross
compiler or target libc)

TARGET_ARCH = "all"
TARGET_OS = "linux"
TARGET_CC_ARCH = "none"

(since these variables shouldn't change between the different packages and
target compiler flags shouldn't be getting used)

PACKAGE_EXTRA_ARCHS = ""

(since we shouldn't be depending on any architecture specific package architectures)

Not all PACKAGE_ARCH = "all" recipes can use this class since some run configure
checks on the compiler. This means they have target specific components and therefore
the "all" classification is incorrect.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 2 insertions, 3 deletions

diff --git a/meta/recipes-bsp/qemu-config/qemu-config.bb b/meta/recipes-bsp/qemu-config/qemu-config.bb
index f91875e74e..70a113e8dc 100644
--- a/meta/recipes-bsp/qemu-config/qemu-config.bb
+++ b/meta/recipes-bsp/qemu-config/qemu-config.bb
@@ -5,7 +5,7 @@ LIC_FILES_CHKSUM = "file://${WORKDIR}/COPYING.GPL;md5=751419260aa954499f7abaabaa
 
 COMPATIBLE_MACHINE = "(qemuarm|qemux86|qemumips|qemuppc)"
 
-PR = "r20"
+PR = "r21"
 
 SRC_URI = "file://distcc.sh \
            file://anjuta-remote-run \
@@ -33,9 +33,8 @@ do_install() {
 }
 
 RDEPENDS_${PN} = "distcc dbus-x11 task-core-nfs-server oprofileui-server rsync bash"
-PACKAGE_ARCH = "all"
 
-inherit update-rc.d
+inherit update-rc.d allarch
 
 INITSCRIPT_NAME = "qemu-autostart"
 INITSCRIPT_PARAMS = "start 999 5 2 . stop 20 0 1 6 ."