hopefully fix out-of-tree build broken by 26139
diff --git a/applets/Kbuild b/applets/Kbuild
index 8aafe78..6c1c8a3 100644
--- a/applets/Kbuild
+++ b/applets/Kbuild
@@ -13,21 +13,27 @@
always:= $(hostprogs-y)
# Generated files need additional love
-# NB: __srctree is either empty or "srctree/"
-# using it instead of srctree decreases amount of rebuilds
-# if tree is merely renamed/copied
-HOSTCFLAGS_usage.o = -I$(__srctree)include
+# This trick decreases amount of rebuilds
+# if tree is merely renamed/copied
+ifeq ($(src),$(obj))
+srctree_slash =
+else
+srctree_slash = $(srctree)/
+endif
+
+
+HOSTCFLAGS_usage.o = -I$(srctree_slash)include
applets/applets.o: include/usage_compressed.h include/applet_tables.h
-applets/usage: .config $(__srctree)applets/usage_compressed
+applets/usage: .config $(srctree_slash)applets/usage_compressed
applets/applet_tables: .config
quiet_cmd_gen_usage_compressed = GEN include/usage_compressed.h
- cmd_gen_usage_compressed = $(__srctree)applets/usage_compressed include/usage_compressed.h applets
+ cmd_gen_usage_compressed = $(srctree_slash)applets/usage_compressed include/usage_compressed.h applets
-include/usage_compressed.h: applets/usage $(__srctree)applets/usage_compressed
+include/usage_compressed.h: applets/usage $(srctree_slash)applets/usage_compressed
$(call cmd,gen_usage_compressed)
quiet_cmd_gen_applet_tables = GEN include/applet_tables.h