Makefile: add savedefconfig target.
This writes a file called 'defconfig' which contains only the deltas from
the default configuration. It's suitable for use as an input defconfig file
for later builds.
Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
diff --git a/backport/Makefile.real b/backport/Makefile.real
index b010dd7..f60d5ca 100644
--- a/backport/Makefile.real
+++ b/backport/Makefile.real
@@ -32,6 +32,11 @@
@$(MAKE) -C kconf conf
@./kconf/conf --defconfig=defconfig Kconfig
+.PHONY: savedefconfig
+savedefconfig:
+ @$(MAKE) -C kconf conf
+ @./kconf/conf --savedefconfig=defconfig Kconfig
+
defconfig-%::
@$(MAKE) -C kconf conf
@./kconf/conf --defconfig=defconfigs/$(@:defconfig-%=%) Kconfig
