at91bootstrap: allow specification of a custom patch directory

Fixes bug #4664.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

CHANGES

@@ -59,6 +59,7 @@
 	#3403: libgpg-error: bump to version 1.10
 	#3409: libgpg-error: download from gnupg.org
 	#3421: nano: make tiny flag optional
+	#4664: Cannot patch AT91Bootstrap
 	#4700: setlocalversion not working for combination svn/ubuntu 11.10...
 
 2011.11, Released November 30th, 2011:

boot/at91bootstrap/Config.in

@@ -10,6 +10,15 @@ config BR2_TARGET_AT91BOOTSTRAP
 
 if	BR2_TARGET_AT91BOOTSTRAP
 
+config BR2_TARGET_AT91BOOTSTRAP_CUSTOM_PATCH_DIR
+	string "custom patch dir"
+	help
+	  If your board requires custom patches, add the path to the
+	  directory containing the patches here. The patches must be
+	  named at91bootstrap-<version>-<something>.patch.
+
+	  Most users may leave this empty
+
 config BR2_TARGET_AT91BOOTSTRAP_BOARD
 	string "Bootstrap board"
 	default ""

boot/at91bootstrap/at91bootstrap.mk

@@ -21,6 +21,15 @@ define AT91BOOTSTRAP_EXTRACT_CMDS
 	rmdir $(BUILD_DIR)/Bootstrap-v$(AT91BOOTSTRAP_VERSION)
 endef
 
+ifneq ($(call qstrip,$(BR2_TARGET_AT91BOOTSTRAP_CUSTOM_PATCH_DIR)),)
+define AT91BOOTSTRAP_APPLY_CUSTOM_PATCHES
+	support/scripts/apply-patches.sh $(@D) $(BR2_TARGET_AT91BOOTSTRAP_CUSTOM_PATCH_DIR) \
+		at91bootstrap-$(AT91BOOTSTRAP_VERSION)-\*.patch
+endef
+
+AT91BOOTSTRAP_POST_PATCH_HOOKS += AT91BOOTSTRAP_APPLY_CUSTOM_PATCHES
+endif
+
 define AT91BOOTSTRAP_BUILD_CMDS
 	$(MAKE) CROSS_COMPILE=$(TARGET_CROSS) -C $(@D)/$(AT91BOOTSTRAP_MAKE_SUBDIR)
 endef