1 files changed, 10 insertions, 1 deletions

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index ae9cf740633e..be38198d98b2 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -294,6 +294,15 @@ quiet_cmd_cc_lst_c = MKLST   $@
 $(obj)/%.lst: $(src)/%.c FORCE
         $(call if_changed_dep,cc_lst_c)
 
+# header test (header-test-y target)
+# ---------------------------------------------------------------------------
+
+quiet_cmd_cc_s_h = CC      $@
+      cmd_cc_s_h = $(CC) $(c_flags) -S -o $@ -x c /dev/null -include $<
+
+$(obj)/%.h.s: $(src)/%.h FORCE
+        $(call if_changed_dep,cc_s_h)
+
 # Compile assembler sources (.S)
 # ---------------------------------------------------------------------------
 
@@ -504,7 +513,7 @@ existing-targets := $(wildcard $(sort $(targets)))
 
 -include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
 
-ifneq ($(srctree),.)
+ifdef building_out_of_srctree
 # Create directories for object files if they do not exist
 obj-dirs := $(sort $(obj) $(patsubst %/,%, $(dir $(targets))))
 # If targets exist, their directories apparently exist. Skip mkdir.