From 9db3b47ea1b37b1ac52561f94ca39fa9cf4ae74c Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Thu, 4 Apr 2013 11:24:25 +0000 Subject: support/kconfig: add support for olddefconfig olddefconfig is a new target available in kconfig that allows to take an old .config file, and update it to the latest version of the code, without being asked for questions: it automatically assumes the default value for options whose value was not defined. It for example allows to take a minimal defconfig, copy it as .config, and do 'make olddefconfig' to get the full .config. Signed-off-by: Thomas Petazzoni Acked-by: Gustavo Zacarias Tested-by: Gustavo Zacarias Signed-off-by: Peter Korsgaard --- Makefile | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'Makefile') diff --git a/Makefile b/Makefile index c95bb1e92..0a91658db 100644 --- a/Makefile +++ b/Makefile @@ -58,7 +58,7 @@ export BR2_VERSION_FULL:=$(BR2_VERSION)$(shell $(TOPDIR)/support/scripts/setloca noconfig_targets:=menuconfig nconfig gconfig xconfig config oldconfig randconfig \ %_defconfig allyesconfig allnoconfig silentoldconfig release \ randpackageconfig allyespackageconfig allnopackageconfig \ - source-check print-version + source-check print-version olddefconfig # Strip quotes and then whitespaces qstrip=$(strip $(subst ",,$(1))) @@ -693,6 +693,10 @@ silentoldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile @mkdir -p $(BUILD_DIR)/buildroot-config $(COMMON_CONFIG_ENV) $< --silentoldconfig $(CONFIG_CONFIG_IN) +olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile + @mkdir -p $(BUILD_DIR)/buildroot-config + $(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) + defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile @mkdir -p $(BUILD_DIR)/buildroot-config @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN) @@ -758,6 +762,8 @@ help: @echo ' xconfig - interactive Qt-based configurator' @echo ' gconfig - interactive GTK-based configurator' @echo ' oldconfig - resolve any unresolved symbols in .config' + @echo ' silentoldconfig - Same as oldconfig, but quietly, additionally update deps' + @echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their default value' @echo ' randconfig - New config with random answer to all options' @echo ' defconfig - New config with default answer to all options' @echo ' BR2_DEFCONFIG, if set, is used as input' -- cgit v1.2.3