barebox/u-boot/linux: don't error out on missing config when make source

As it breaks 'make allyesconfig; make source', used for the source mirror.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

boot/barebox/barebox.mk

@@ -53,9 +53,11 @@ barebox: $(BAREBOX_DIR)/.installed
 ifeq ($(BR2_TARGET_BAREBOX),y)
 TARGETS+=barebox
 
-# we NEED a board defconfig file
+# we NEED a board defconfig file unless we're at make source
+ifeq ($(filter source,$(MAKECMDGOALS)),)
 ifeq ($(BAREBOX_BOARD_DEFCONFIG),)
 $(error No Barebox defconfig file. Check your BR2_TARGET_BAREBOX_BOARD_DEFCONFIG setting)
 endif
+endif
 
 endif

boot/u-boot/u-boot.mk

@@ -193,9 +193,11 @@ u-boot-configured: $(U_BOOT_DIR)/.header_modified
 ifeq ($(BR2_TARGET_UBOOT),y)
 TARGETS+=u-boot
 
-# we NEED a board name
+# we NEED a board name unless we're at make source
+ifeq ($(filter source,$(MAKECMDGOALS)),)
 ifeq ($(U_BOOT_BOARD_NAME),)
 $(error NO U-Boot board name set. Check your BR2_TARGET_UBOOT_BOARDNAME setting)
 endif
+endif
 
 endif

linux/linux.mk

@@ -159,6 +159,7 @@ TARGETS+=linux26
 endif
 
 # Checks to give errors that the user can understand
+ifeq ($(filter source,$(MAKECMDGOALS)),)
 ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
 ifeq ($(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG)),)
 $(error No kernel defconfig name specified, check your BR2_LINUX_KERNEL_DEFCONFIG setting)
@@ -169,4 +170,6 @@ ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG),y)
 ifeq ($(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE)),)
 $(error No kernel configuration file specified, check your BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE setting)
 endif
-endif
+endif
+
+endif