--- /dev/null
+#############################################################
+#
+# bsdiff
+#
+#############################################################
+BSDIFF_VERSION:=4.3
+BSDIFF_SOURCE:=bsdiff-$(BSDIFF_VERSION).tar.gz
+BSDIFF_SITE:=http://www.daemonology.net/bsdiff
+BSDIFF_DIR:=$(BUILD_DIR)/bsdiff-$(BSDIFF_VERSION)
+BSDIFF_BINARY:=bsdiff
+BSDIFF_TARGET_BINARY:=usr/bin/bsdiff
+BSDIFF_ZCAT=$(ZCAT)
+
+$(DL_DIR)/$(BSDIFF_SOURCE):
+ $(WGET) -P $(DL_DIR) $(BSDIFF_SITE)/$(BSDIFF_SOURCE)
+
+$(BSDIFF_DIR)/.source: $(DL_DIR)/$(BSDIFF_SOURCE)
+ $(BSDIFF_ZCAT) $(DL_DIR)/$(BSDIFF_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
+ touch $(BSDIFF_DIR)/.source
+
+$(BSDIFF_DIR)/$(BSDIFF_BINARY): $(BSDIFF_DIR)/.source
+ (cd $(BSDIFF_DIR) ; \
+ $(TARGET_CONFIGURE_OPTS) \
+ $(TARGET_CC) -L $(STAGING_DIR)/lib -lbz2 \
+ $(TARGET_CFLAGS) bsdiff.c -o bsdiff ; \
+ $(TARGET_CONFIGURE_OPTS) \
+ $(TARGET_CC) -L $(STAGING_DIR)/lib -lbz2 \
+ $(TARGET_CFLAGS) bspatch.c -o bspatch ; \
+ )
+
+$(TARGET_DIR)/$(BSDIFF_TARGET_BINARY): $(BSDIFF_DIR)/$(BSDIFF_BINARY)
+ cp -dpf $(BSDIFF_DIR)/bsdiff $(TARGET_DIR)/usr/bin/.
+ cp -dpf $(BSDIFF_DIR)/bspatch $(TARGET_DIR)/usr/bin/.
+
+bsdiff: uclibc bzip2 $(TARGET_DIR)/$(BSDIFF_TARGET_BINARY)
+
+bsdiff-source: $(DL_DIR)/$(BSDIFF_SOURCE)
+
+bsdiff-clean:
+ -rm $(TARGET_DIR)/usr/bin/{bsdiff,bspatch}
+ -rm $(BSDIFF_DIR)/{bsdiff,bspatch}
+
+bsdiff-dirclean:
+ rm -rf $(BSDIFF_DIR)
+
+#############################################################
+#
+# Toplevel Makefile options
+#
+#############################################################
+ifeq ($(strip $(BR2_PACKAGE_BSDIFF)),y)
+TARGETS+=bsdiff
+endif