pack: add squash to the list of ve archive formats

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

@@ -8,6 +8,10 @@ ifeq (cpio,$(IMAGE_PACKTYPE))
 MKI_CPIO_COMPRESS = $(IMAGE_COMPRESS)
 endif
 
+ifeq (squash,$(IMAGE_PACKTYPE))
+pack-image: CLEANUP_OUTDIR=
+endif
+
 # some VEs _can_ contain kernels (think ARM multiboot
 # but this can also help VE/VM hybrid images)
 IMAGE_PACKAGES = $(DOT_BASE) \

features.in/pack/config.mk

@@ -15,7 +15,7 @@ use/pack/iso: use/pack
 	@$(call try,IMAGE_PACKTYPE,isodata)
 
 # virtual environments
-VE_ARCHIVES := tar cpio ubifs
+VE_ARCHIVES := squash tar cpio ubifs
 VE_COMPRESSORS := gz xz# there's no sense in bzip2 by now
 VE_ZIPS := $(call addsuffices, \
 		$(addprefix .,$(VE_COMPRESSORS)), \