mk: forcibly delete dest dir when PREPARE_CLEAN

diff --git a/mk/prepare.mk b/mk/prepare.mk
index 69da496691908be2b61ef9e5ba58e758fe2303bb..304806f12ad93d1b5e0cf93e9d5f6795a483ca9e 100644 (file)
--- a/mk/prepare.mk
+++ b/mk/prepare.mk
@@ -201,4 +201,4 @@ prepare-maybe-clean:
        $(if $(findstring true,$(PREPARE_CLEAN)),\
       @$(call E, cleaning destination $@),)
        $(if $(findstring true,$(PREPARE_CLEAN)),\
-      $(Q)rm -r $(PREPARE_DEST_DIR),)
+      $(Q)rm -rf $(PREPARE_DEST_DIR),)