[PATCH] allarch: Add warning about packagegroup

[Richard Purdie <richard.purdie@linuxfoundation.org>]

Since we want to start including this class conditionally, detect cases
where packagegroup files use the old ordering and inform the user they 
need to update this.

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

diff --git a/meta/classes/allarch.bbclass b/meta/classes/allarch.bbclass
index c953e7c..4bc9927 100644
--- a/meta/classes/allarch.bbclass
+++ b/meta/classes/allarch.bbclass
@@ -37,5 +37,7 @@ python () {
         d.setVar("EXCLUDE_FROM_SHLIBS", "1")
         d.setVar("INHIBIT_PACKAGE_DEBUG_SPLIT", "1")
         d.setVar("INHIBIT_PACKAGE_STRIP", "1")
+    elif bb.data.inherits_class('packagegroup', d) and not bb.data.inherits_class('nativesdk', d):
+        bb.error("Please ensure recipe %s sets PACKAGE_ARCH before inherit packagegroup" % d.getVar("FILE", True))
 }