core: allow external defconfigs to be used

This commit allows the user to store defconfigs in
$BR2_EXTERNAL/configs/. To achieve this:

 * It adds a new %_defconfig that looks in $BR2_EXTERNAL/configs/ for
   the corresponding defconfig file.

 * Updates the help target to also list external defconfigs.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Acked-by: Ryan Barnett <rjbarnet@rockwellcollins.com>
Tested-by: "Samuel Martin" <s.martin49@gmail.com>
Acked-by: "Samuel Martin" <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Thomas Petazzoni 2013-12-05 20:11:12 +01:00 committed by Peter Korsgaard
parent 8eb8aaf904
commit ff9d6e3060

View File

@ -741,6 +741,10 @@ defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
@mkdir -p $(BUILD_DIR)/buildroot-config
@$(COMMON_CONFIG_ENV) $< --defconfig=$(TOPDIR)/configs/$@ $(CONFIG_CONFIG_IN)
%_defconfig: $(BUILD_DIR)/buildroot-config/conf $(BR2_EXTERNAL)/configs/%_defconfig outputmakefile
@mkdir -p $(BUILD_DIR)/buildroot-config
@$(COMMON_CONFIG_ENV) $< --defconfig=$(BR2_EXTERNAL)/configs/$@ $(CONFIG_CONFIG_IN)
savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
@mkdir -p $(BUILD_DIR)/buildroot-config
@$(COMMON_CONFIG_ENV) $< \
@ -849,8 +853,15 @@ endif
@echo ' make V=0|1 - 0 => quiet build (default), 1 => verbose build'
@echo ' make O=dir - Locate all output files in "dir", including .config'
@echo
@echo 'Built-in configs:'
@$(foreach b, $(sort $(notdir $(wildcard $(TOPDIR)/configs/*_defconfig))), \
printf " %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
ifneq ($(wildcard $(BR2_EXTERNAL)/configs/*_defconfig),)
@echo
@echo 'User-provided configs:'
@$(foreach b, $(sort $(notdir $(wildcard $(BR2_EXTERNAL)/configs/*_defconfig))), \
printf " %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
endif
@echo
@echo 'See docs/README, or generate the Buildroot manual for further details'
@echo