[PATCH v2 3/4] package_deb.bbclass: add PACKAGE_ADD_METADATA_DEB to sstate variables

["Michael Ho" <Michael.Ho@bmw.de>]

From: Michael Ho <Michael.Ho@bmw.de>

Refactor the addition of vardeps for this package class to use DEBEXTRAVARS
and pass the items through gen_packagevar so package name specific overrides
are accounted for. This matches the style used in package_ipk.bbclass.

Additionally add PACKAGE_ADD_METADATA_DEB to the DEBEXTRAVARS list so the
packaging is redone if the variable changes value.

Signed-off-by: Michael Ho <Michael.Ho@bmw.de>
---
 meta/classes/package_deb.bbclass | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/meta/classes/package_deb.bbclass b/meta/classes/package_deb.bbclass
index 790b26a..cb723fc 100644
--- a/meta/classes/package_deb.bbclass
+++ b/meta/classes/package_deb.bbclass
@@ -283,8 +283,9 @@ def deb_write_pkg(pkg, d):
 # Otherwise allarch packages may change depending on override configuration
 deb_write_pkg[vardepsexclude] = "OVERRIDES"
 
-# Indirect references to these vars
-do_package_write_deb[vardeps] += "PKGV PKGR PKGV DESCRIPTION SECTION PRIORITY MAINTAINER DPKG_ARCH PN HOMEPAGE"
+# Have to list any variables referenced as X_<pkg> that aren't in pkgdata here
+DEBEXTRAVARS = "PKGV PKGR PKGV DESCRIPTION SECTION PRIORITY MAINTAINER DPKG_ARCH PN HOMEPAGE PACKAGE_ADD_METADATA_DEB"
+do_package_write_deb[vardeps] += "${@gen_packagevar(d, 'DEBEXTRAVARS')}"
 
 SSTATETASKS += "do_package_write_deb"
 do_package_write_deb[sstate-inputdirs] = "${PKGWRITEDIRDEB}"
-- 
2.7.4