1 files changed, 4 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index ff4ff3a..b2afaaa 100644
--- a/Makefile
+++ b/Makefile
@@ -29,4 +29,8 @@ devices.tar.gz:
 	chmod 755 dev
 	(cd dev && $(MAKEDEV) std ptmx fd consoleonly)
 	tar cf - dev | gzip -9 >devices.tar.gz
+	@if [ "$$(tar tvf devices.tar.gz | wc -l)" -lt 2 ]; then \
+		echo " ** devices.tar.gz is empty!" >&2; \
+		exit 1; \
+	fi
 	rm -rf dev