target/imagebuilder: Switch to xz compression instead of bz2

Switch to xz compression instead of using bz2.
Saves about 20% of total size (ar71xx)

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

diff --git a/target/imagebuilder/Makefile b/target/imagebuilder/Makefile
index b809193db3b358c5a5e592851d17d882aae46426..b43662b6ac8a8a3f75dea59be5d96abbad12e448 100644 (file)
--- a/target/imagebuilder/Makefile
+++ b/target/imagebuilder/Makefile
@@ -21,7 +21,7 @@ IB_DTSDIR:=$(patsubst $(TOPDIR)/%,$(PKG_BUILD_DIR)/%,$(LINUX_DIR))/arch/$(ARCH)/
 
 all: compile
 
-$(BIN_DIR)/$(IB_NAME).tar.bz2: clean
+$(BIN_DIR)/$(IB_NAME).tar.xz: clean
        rm -rf $(PKG_BUILD_DIR)
        mkdir -p $(IB_KDIR) $(IB_LDIR) $(PKG_BUILD_DIR)/staging_dir/host/lib \
                $(PKG_BUILD_DIR)/target $(PKG_BUILD_DIR)/scripts $(IB_DTSDIR)
@@ -77,12 +77,12 @@ endif
        find $(STAGING_DIR_HOST)/bin -maxdepth 1 -type f -perm -u=x \
          | $(XARGS) $(SCRIPT_DIR)/bundle-libraries.sh $(PKG_BUILD_DIR)/staging_dir/host/bin/
        STRIP=sstrip $(SCRIPT_DIR)/rstrip.sh $(PKG_BUILD_DIR)/staging_dir/host/bin/
-       $(TAR) -cf - -C $(BUILD_DIR) $(IB_NAME) | bzip2 -c > $@
+       $(TAR) -cf - -C $(BUILD_DIR) $(IB_NAME) | xz -zc -7e > $@
 
 download:
 prepare:
-compile: $(BIN_DIR)/$(IB_NAME).tar.bz2
+compile: $(BIN_DIR)/$(IB_NAME).tar.xz
 install: compile
 
 clean: FORCE
-       rm -rf $(PKG_BUILD_DIR) $(BIN_DIR)/$(IB_NAME).tar.bz2
+       rm -rf $(PKG_BUILD_DIR) $(BIN_DIR)/$(IB_NAME).tar.xz