Reinstate debbuild dependency checking

Change-Id: Ib586fc875377933f43cd7d003ec2d73b2a4cffe8
diff --git a/packages.mk b/packages.mk
index 23ab594..577cf47 100644
--- a/packages.mk
+++ b/packages.mk
@@ -76,7 +76,6 @@
 		--basetgz $(ROOTDIR)/cache/base.tgz \
 		--configfile $(ROOTDIR)/build/pbuilderrc \
 		--hookdir $(ROOTDIR)/build/pbuilder-hooks \
-		--debbuildopts -d \
 		--host-arch arm64
 	touch $(PRODUCT_OUT)/.$1-pbuilder
 .PHONY:: $1
diff --git a/prereqs.mk b/prereqs.mk
index 30802c4..492a79e 100644
--- a/prereqs.mk
+++ b/prereqs.mk
@@ -9,6 +9,7 @@
 	binutils-aarch64-linux-gnu \
 	build-essential \
 	binfmt-support \
+	cdbs \
 	coreutils \
 	debhelper \
 	debian-archive-keyring \
@@ -18,6 +19,7 @@
 	fakeroot \
 	genext2fs \
 	git \
+	gnome-pkg-tools \
 	kpartx \
 	libcap-dev \
 	libwayland-dev \