Make savedefconfig save to a configured file.
Store BR2_DEFCONFIG in .config, and use it to update the original input
defconfig file after updating the configuration. When a config is
created by using the BR2_DEFCONFIG=... option, this is saved in the
.config file; later runs of savedefconfig will update that same location.
It is also possible to configure this place in the interactive
configuration.
The BR2_DEFCONFIG value itself is not saved into the generated
defconfig, since Kconfig considers it at its default. This is
intentional, to avoid hard-coding an absolute path in the defconfig.
It will anyway be set again when the defconfig is used with the
'make BR2_DEFCONFIG=... defconfig' command.
As a side-effect of this change, the *config options have been moved out
of the BR2_HAVE_DOT_CONFIG condition. This doesn't make any functional
difference, because the .config is still not read for the *config targets.
However, the defconfig and savedefconfig targets do need to include
.config now, which makes them slightly slower.
[Peter: slightly tweak help text]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Acked-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
diff --git a/Makefile b/Makefile
index 98db8b1..d9e5f24 100644
--- a/Makefile
+++ b/Makefile
@@ -56,7 +56,7 @@
export BR2_VERSION_FULL:=$(BR2_VERSION)$(shell $(TOPDIR)/support/scripts/setlocalversion)
noconfig_targets:=menuconfig nconfig gconfig xconfig config oldconfig randconfig \
- defconfig %_defconfig savedefconfig allyesconfig allnoconfig silentoldconfig release \
+ %_defconfig allyesconfig allnoconfig silentoldconfig release \
randpackageconfig allyespackageconfig allnopackageconfig \
source-check print-version
@@ -592,6 +592,8 @@
all: menuconfig
+endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
+
# configuration
# ---------------------------------------------------------------------------
@@ -602,7 +604,12 @@
mkdir -p $(@D)/lxdialog
$(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
+DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
+
+# We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
+# recognize that if it's still at its default $(CONFIG_DIR)/defconfig
COMMON_CONFIG_ENV = \
+ BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
@@ -680,7 +687,7 @@
defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
@mkdir -p $(BUILD_DIR)/buildroot-config
- @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(BR2_DEFCONFIG),=$(BR2_DEFCONFIG)) $(CONFIG_CONFIG_IN)
+ @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
%_defconfig: $(BUILD_DIR)/buildroot-config/conf $(TOPDIR)/configs/%_defconfig outputmakefile
@mkdir -p $(BUILD_DIR)/buildroot-config
@@ -688,13 +695,15 @@
savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
@mkdir -p $(BUILD_DIR)/buildroot-config
- @$(COMMON_CONFIG_ENV) $< --savedefconfig=$(CONFIG_DIR)/defconfig $(CONFIG_CONFIG_IN)
+ @$(COMMON_CONFIG_ENV) $< \
+ --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
+ $(CONFIG_CONFIG_IN)
# check if download URLs are outdated
source-check:
$(MAKE) DL_MODE=SOURCE_CHECK $(EXTRAMAKEARGS) source
-endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
+.PHONY: defconfig savedefconfig
#############################################################
#