[PATCH 1/2] Makefile: Create empty <config.h> if this header file is not needed by board

[Alexander Shiyan]

Patch creates empty <config.h> if this header is not needed by board.
This will allow to remove many empty config.h files from boards.

Signed-off-by: Alexander Shiyan <shc_work at mail.ru>
---
 Makefile | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/Makefile b/Makefile
index b5819fc..e8d9984 100644
--- a/Makefile
+++ b/Makefile
@@ -898,13 +898,18 @@ include/asm:
 	$(Q)$(check-symlink)
 	$(Q)$(create-symlink)
 
+define symlink-config-h
+	if [ -f $(srctree)/$(BOARD)/config.h ]; then		\
+		$(kecho) '  SYMLINK $@ -> $(BOARD)/config.h';	\
+		ln -fsn $(srctree)/$(BOARD)/config.h $@;	\
+	else							\
+		$(kecho) '  CREATE  $@';			\
+		echo -n > $@;					\
+	fi
+endef
+
 include/config.h: include/config/auto.conf
-	$(Q)$(kecho) '  SYMLINK $@ -> $(BOARD)/config.h'
-ifneq ($(KBUILD_SRC),)
-	$(Q)ln -fsn $(srctree)/$(BOARD)/config.h $@
-else
-	$(Q)ln -fsn ../$(BOARD)/config.h $@
-endif
+	$(Q)$(symlink-config-h)
 
 # Generate some files
 # ---------------------------------------------------------------------------
-- 
1.7.12.4