build-ve, build-vm: handle *_PACKAGES_REGEXP

BASE_PACKAGES_REGEXP and THE_PACKAGES_REGEXP,
to be exact; the lack of handling these appears
to have been the culprit of firefox missing in
vm images which use/browser/firefox.

features.in/build-ve/lib/90-build-ve.mk

@@ -17,5 +17,8 @@ IMAGE_PACKAGES = $(DOT_BASE) \
 		 $(THE_PACKAGES) \
 		 $(call list,$(BASE_LISTS) $(THE_LISTS))
 
+IMAGE_PACKAGES_REGEXP = $(THE_PACKAGES_REGEXP) \
+                        $(BASE_PACKAGES_REGEXP)
+
 all: $(GLOBAL_DEBUG) build-image copy-tree run-image-scripts pack-image \
 	postprocess $(GLOBAL_CLEAN_WORKDIR)

features.in/build-vm/lib/90-build-vm.mk

@@ -7,6 +7,9 @@ IMAGE_PACKAGES = $(DOT_BASE) \
 		 $(THE_PACKAGES) \
 		 $(call list,$(BASE_LISTS) $(THE_LISTS))
 
+IMAGE_PACKAGES_REGEXP = $(THE_PACKAGES_REGEXP) \
+			$(BASE_PACKAGES_REGEXP)
+
 # intermediate chroot archive
 VM_TARBALL := $(IMAGE_OUTDIR)/$(IMAGE_NAME).tar
 VM_RAWDISK := $(IMAGE_OUTDIR)/$(IMAGE_NAME).raw