kbuild: always run 'make silentoldconfig' when tree is cleaned

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / Makefile

diff --git a/Makefile b/Makefile
index 922c7633797f8e7012e462fbe248e7deedf68f89..d3598ef3c777ada6e4ac95ca34c2920f2ae65509 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -477,18 +477,20 @@ ifeq ($(dot-config),1)
 
 # Read in dependencies to all Kconfig* files, make sure to run
 # oldconfig if changes are detected.
--include .config.cmd
+-include .kconfig.d
 
 include .config
 
 # If .config needs to be updated, it will be done via the dependency
 # that autoconf has on .config.
 # To avoid any implicit rule to kick in, define an empty command
-.config: ;
+.config .kconfig.d: ;
 
 # If .config is newer than include/linux/autoconf.h, someone tinkered
-# with it and forgot to run make oldconfig
-include/linux/autoconf.h: .config
+# with it and forgot to run make oldconfig.
+# If kconfig.d is missing then we are probarly in a cleaned tree so
+# we execute the config step to be sure to catch updated Kconfig files
+include/linux/autoconf.h: .kconfig.d .config
        $(Q)mkdir -p include/linux
        $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
 else