Merge branch 'next'

[coffee/buildroot.git] / Makefile

diff --git a/Makefile b/Makefile
index 3163a83aea8204e10f96e0f7a9a5c9329994d53c..dfef02189b2dc570425f22121da7e48c21c4ec38 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -106,14 +106,8 @@ else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),)
 BR_BUILDING = y
 endif
 
-# Strip quotes and then whitespaces
-qstrip = $(strip $(subst ",,$(1)))
-#"))
-
-# Variables for use in Make constructs
-comma := ,
-empty :=
-space := $(empty) $(empty)
+# Include some helper macros and variables
+include support/misc/utils.mk
 
 ifneq ("$(origin O)", "command line")
 O := output
@@ -206,6 +200,15 @@ LEGAL_LICENSES_TXT_HOST = $(LEGAL_INFO_DIR)/host-licenses.txt
 LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
 LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
 
+################################################################################
+#
+# staging and target directories do NOT list these as
+# dependencies anywhere else
+#
+################################################################################
+$(BUILD_DIR) $(TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST):
+       @mkdir -p $@
+
 BR2_CONFIG = $(CONFIG_DIR)/.config
 
 # Pull in the user's configuration file
@@ -502,15 +505,6 @@ world: target-post-image
        legal-info legal-info-prepare legal-info-clean printvars help \
        list-defconfigs target-finalize target-post-image source-check
 
-################################################################################
-#
-# staging and target directories do NOT list these as
-# dependencies anywhere else
-#
-################################################################################
-$(BUILD_DIR) $(TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST):
-       @mkdir -p $@
-
 # Populating the staging with the base directories is handled by the skeleton package
 $(STAGING_DIR):
        @mkdir -p $(STAGING_DIR)
@@ -766,6 +760,9 @@ endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
 export HOSTCFLAGS
 
+.PHONY: prepare-kconfig
+prepare-kconfig: outputmakefile $(BUILD_DIR)/.br2-external.in
+
 $(BUILD_DIR)/buildroot-config/%onf:
        mkdir -p $(@D)/lxdialog
        PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
@@ -783,21 +780,22 @@ COMMON_CONFIG_ENV = \
        BR2_CONFIG=$(BR2_CONFIG) \
        BR2_EXTERNAL=$(BR2_EXTERNAL) \
        HOST_GCC_VERSION="$(HOSTCC_VERSION)" \
+       BUILD_DIR=$(BUILD_DIR) \
        SKIP_LEGACY=
 
-xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile
+xconfig: $(BUILD_DIR)/buildroot-config/qconf prepare-kconfig
        @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 
-gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile
+gconfig: $(BUILD_DIR)/buildroot-config/gconf prepare-kconfig
        @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
 
-menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile
+menuconfig: $(BUILD_DIR)/buildroot-config/mconf prepare-kconfig
        @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 
-nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile
+nconfig: $(BUILD_DIR)/buildroot-config/nconf prepare-kconfig
        @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 
-config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
+config: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
        @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 
 # For the config targets that automatically select options, we pass
@@ -805,22 +803,22 @@ config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 # no values are set for the legacy options so a subsequent oldconfig
 # will query them. Therefore, run an additional olddefconfig.
 
-oldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
+oldconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
        @$(COMMON_CONFIG_ENV) $< --oldconfig $(CONFIG_CONFIG_IN)
 
-randconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
+randconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
        @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --randconfig $(CONFIG_CONFIG_IN)
        @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 
-allyesconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
+allyesconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
        @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --allyesconfig $(CONFIG_CONFIG_IN)
        @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 
-allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
+allnoconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
        @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --allnoconfig $(CONFIG_CONFIG_IN)
        @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 
-randpackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
+randpackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
        @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
        @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
                KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
@@ -828,7 +826,7 @@ randpackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
        @rm -f $(CONFIG_DIR)/.config.nopkg
        @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 
-allyespackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
+allyespackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
        @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
        @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
                KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
@@ -836,7 +834,7 @@ allyespackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
        @rm -f $(CONFIG_DIR)/.config.nopkg
        @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 
-allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
+allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
        @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
        @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
                KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
@@ -844,25 +842,24 @@ allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
        @rm -f $(CONFIG_DIR)/.config.nopkg
        @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 
-silentoldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
+silentoldconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
        $(COMMON_CONFIG_ENV) $< --silentoldconfig $(CONFIG_CONFIG_IN)
 
-olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
+olddefconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
        $(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN)
 
-defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
+defconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
        @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
 
+define percent_defconfig
 # Override the BR2_DEFCONFIG from COMMON_CONFIG_ENV with the new defconfig
-%_defconfig: $(BUILD_DIR)/buildroot-config/conf $(TOPDIR)/configs/%_defconfig outputmakefile
-       @$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(TOPDIR)/configs/$@ \
-               $< --defconfig=$(TOPDIR)/configs/$@ $(CONFIG_CONFIG_IN)
-
-%_defconfig: $(BUILD_DIR)/buildroot-config/conf $(BR2_EXTERNAL)/configs/%_defconfig outputmakefile
-       @$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(BR2_EXTERNAL)/configs/$@ \
-               $< --defconfig=$(BR2_EXTERNAL)/configs/$@ $(CONFIG_CONFIG_IN)
+%_defconfig: $(BUILD_DIR)/buildroot-config/conf $(1)/configs/%_defconfig prepare-kconfig
+       @$$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(1)/configs/$$@ \
+               $$< --defconfig=$(1)/configs/$$@ $$(CONFIG_CONFIG_IN)
+endef
+$(eval $(foreach d,$(TOPDIR) $(BR2_EXTERNAL),$(call percent_defconfig,$(d))$(sep)))
 
-savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
+savedefconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
        @$(COMMON_CONFIG_ENV) $< \
                --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
                $(CONFIG_CONFIG_IN)
@@ -884,6 +881,13 @@ ifeq ($(NEED_WRAPPER),y)
        $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
 endif
 
+# Even though the target is a real file, we mark it as PHONY as we
+# want it to be re-generated each time make is invoked, in case the
+# value of BR2_EXTERNAL is changed.
+.PHONY: $(BUILD_DIR)/.br2-external.in
+$(BUILD_DIR)/.br2-external.in: $(BUILD_DIR)
+       @touch $@
+
 # printvars prints all the variables currently defined in our
 # Makefiles. Alternatively, if a non-empty VARS variable is passed,
 # only the variables matching the make pattern passed in VARS are